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See also:[[Timeline of psychology]]
 
See also:[[Timeline of psychology]]
   
The '''[[history]]''' of '''[[psychology]]''' as a scholarly study of the [[mind]] and [[behavior]] dates back to the Ancient Greeks. There is also evidence of psychological thought in ancient Egypt. Psychology was a branch of [[philosophy]] until 1879, when psychology developed as an independent scientific discipline in [[Germany]] and the [[United States]]. Psychology borders on various other fields including [[physiology]], [[neuroscience]], [[artificial intelligence]], [[sociology]], [[anthropology]], as well as philosophy and other components of the [[humanities]].
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The '''[[history]]''' of '''[[psychology]]''' as a scholarly study of the [[mind]] and [[behavior]] dates back to the Ancient Greeks. There is also evidence of psychological thought in ancient Egypt. Psychology was a branch of [[philosophy]] until 1879, when psychology developed as an independent scientific discipline in [[Germany]] and the [[United States]]. Psychology borders on various other fields including [[physiology]], [[neuroscience]], [[artificial intelligence]], [[sociology]], [[anthropology]], as well as philosophy and other components of the [[humanities]].
   
   
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Philosophical interest in the mind and behavior dates back to the ancient civilizations of Egypt, Greece, China and India. These earlier forms of inquiry began adopting a more [[Clinical psychology|clinical]]<ref>Ibrahim B. Syed PhD, "Islamic Medicine: 1000 years ahead of its times", ''[[The Islamic Medical Association of North America|Journal of the Islamic Medical Association]]'', 2002 (2), p. 2-9.</ref> and [[Experimental psychology|experimental]]<ref name=Khaleefa/> approach under medieval Greek and [[Islamic psychology|Muslim psychologists]] and [[Islamic medicine|physicians]], whose practitioners built the first [[psychiatric hospital]]s.<ref name=Dening-57>Hanafy A. Youssef, Fatma A. Youssef and T. R. Dening (1996), "Evidence for the existence of schizophrenia in medieval Islamic society", ''History of Psychiatry'' '''7''': 55-62 [57].</ref>
 
Philosophical interest in the mind and behavior dates back to the ancient civilizations of Egypt, Greece, China and India. These earlier forms of inquiry began adopting a more [[Clinical psychology|clinical]]<ref>Ibrahim B. Syed PhD, "Islamic Medicine: 1000 years ahead of its times", ''[[The Islamic Medical Association of North America|Journal of the Islamic Medical Association]]'', 2002 (2), p. 2-9.</ref> and [[Experimental psychology|experimental]]<ref name=Khaleefa/> approach under medieval Greek and [[Islamic psychology|Muslim psychologists]] and [[Islamic medicine|physicians]], whose practitioners built the first [[psychiatric hospital]]s.<ref name=Dening-57>Hanafy A. Youssef, Fatma A. Youssef and T. R. Dening (1996), "Evidence for the existence of schizophrenia in medieval Islamic society", ''History of Psychiatry'' '''7''': 55-62 [57].</ref>
   
Psychology as a self-conscious field of experimental study began in [[1879]], when [[Wilhelm Wundt]] founded the first laboratory dedicated exclusively to psychological research in Leipzig. Other important early contributors to the field include [[Hermann Ebbinghaus]] (a pioneer in the study of [[memory]]), [[William James]] (the American father of [[pragmatism]]), and [[Ivan Pavlov]] (who developed the procedures associated with [[classical conditioning]]).
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Psychology as a self-conscious field of experimental study began in [[1879]], when [[Wilhelm Wundt]] founded the first laboratory dedicated exclusively to psychological research in Leipzig. Other important early contributors to the field include [[Hermann Ebbinghaus]] (a pioneer in the study of [[memory]]), [[William James]] (the American father of [[pragmatism]]), and [[Ivan Pavlov]] (who developed the procedures associated with [[classical conditioning]]). Prior to this, questions that are now treated within psychology were subsumed within [[philosophy]] and it is only relatively recently that [[the relationship between psychology and philosophy]] has been redrawn<ref>[[William O'Donohue|O'Donohue]], W. and Kitchener, R.F. (1996). The Philosophy of Psychology. London:Sage.</ref>.
   
Soon after the development of experimental psychology, various kinds of applied psychology appeared. [[G. Stanley Hall]] brought scientific pedagogy to the United States from Germany in the early 1880s. [[John Dewey]]'s educational theory of the 1890s was another example. Also in the 1890s, [[Hugo Münsterberg]] began writing about the application of psychology to industry, law, and other fields. [[Lightner Witmer]] established the first psychological clinic in the 1890s. [[James McKeen Cattell]] adapted [[Francis Galton]]'s anthropometric methods to generate the first program of mental testing in the 1890s. In Vienna, meanwhile, the psychiatrist [[Sigmund Freud]] developed an independent approach to the study of the mind called [[psychoanalysis]], which has been widely influential.
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Soon after the development of experimental psychology, various kinds of applied psychology appeared. [[G. Stanley Hall]] brought scientific pedagogy to the United States from Germany in the early 1880s. [[John Dewey]]'s educational theory of the 1890s was another example. Also in the 1890s, [[Hugo Münsterberg]] began writing about the application of psychology to industry, law, and other fields. [[Lightner Witmer]] established the first psychological clinic in the 1890s. [[James McKeen Cattell]] adapted [[Francis Galton]]'s anthropometric methods to generate the first program of mental testing in the 1890s. In Vienna, meanwhile, the psychiatrist [[Sigmund Freud]] developed an independent approach to the study of the mind called [[psychoanalysis]], which has been widely influential.
   
The 20th century saw a reaction to [[Edward Titchener]]'s critique of Wundt's empiricism. This contributed to the formulation of [[behaviorism]] by [[John B. Watson]], which was popularized by [[B. F. Skinner]]. Behaviorism proposed limiting psychological study to that of overt behavior, because that could be quantified and easily measured. Behaviorists considered knowledge of the "[[mind]]" too [[metaphysics|metaphysical]] to achieve scientifically. The final decades of the 20th century saw the decline of behaviorism and the rise of [[cognitive science]], an interdisciplinary approach to studying the human mind. Cognitive science again considers the "mind" as a subject for investigation, using the tools of [[evolutionary psychology]], [[linguistics]], [[computer science]], [[philosophy]], and [[neurobiology]]. This form of investigation has proposed that a wide understanding of the human mind is possible, and that such an understanding may be applied to other research domains, such as [[artificial intelligence]].
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The 20th century saw a reaction to [[Edward Titchener]]'s critique of Wundt's empiricism. This contributed to the formulation of [[behaviorism]] by [[John B. Watson]], which was popularized by [[B. F. Skinner]]. Behaviorism proposed limiting psychological study to that of overt behavior, because that could be quantified and easily measured. Behaviorists considered knowledge of the "[[mind]]" too [[metaphysics|metaphysical]] to achieve scientifically. The final decades of the 20th century saw the decline of behaviorism and the rise of [[cognitive science]], an interdisciplinary approach to studying the human mind. Cognitive science again considers the "mind" as a subject for investigation, using the tools of [[evolutionary psychology]], [[linguistics]], [[computer science]], [[philosophy]], and [[neurobiology]]. This form of investigation has proposed that a wide understanding of the human mind is possible, and that such an understanding may be applied to other research domains, such as [[artificial intelligence]].
   
 
==Early psychological thought==
 
==Early psychological thought==
 
{{See|Philosophy of mind}}
{{Unreferenced section|date=February 2008}}
 
{{see|Philosophy of mind}}
 
   
Many cultures throughout history have speculated on the nature of the mind, soul, spirit, etc. For instance, in Ancient Egypt, the coverboiz contains an early description of the brain, and some speculations on its functions (though in a medical/surgical context). Though other medical documents of ancient times were full of incantations and applications meant to turn away disease-causing demons and other superstition, the Edwin Smith Papyrus gives remedies to almost 50 conditions and only 1 contains incantations to ward off evil. It has been praised as being similar to what is today considered common knowledge, but must be recognized as having originated in a very different context.
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Many cultures throughout history have speculated on the nature of the mind, soul, spirit, etc. For instance, in Ancient Egypt, the [[Edwin Smith Papyrus]] contains an early description of the brain, and some speculations on its functions (though in a medical/surgical context). Though other medical documents of ancient times were full of incantations and applications meant to turn away disease-causing demons and other superstition, the Edwin Smith Papyrus gives remedies to almost 50 conditions and only 1 contains incantations to ward off evil. It has been praised as being similar to what is today considered common knowledge, but must be recognized as having originated in a very different context.
   
Ancient Greek philosophers, from [[Thales]] (fl. 550 bc) through even to the Roman period, developed an elaborate theory of what they termed the ''psuchẽ'' (from which the first half of "psychology" is derived), as well as other "psychological" terms – ''nous'', ''thumos'', ''logistikon'', etc. (see e.g., Everson, 1991; Green & Groff, 2003). The most influential of these are the accounts of [[Plato]] (especially in the ''[[Republic]]''see, e.g., Robinson, 1995), [[Pythagoras]] and of [[Aristotle]] (esp. ''Peri Psyches'', better known under its Latin title, ''[[De Anima]]''see, e.g., Durrant, 1993; Nussbaum & Rorty, 1992). Hellenistic philosophers (viz., the [[Stoics]] and [[Epicurians]]) diverged from the Classical Greek tradition in several important ways, especially in their concern with questions of the physiological basis of the mind (see e.g., Annas, 1992). The Roman physician [[Galen]] addressed these issues most elaborately and influentially of all. The Greek tradition influenced some Christian and Islamic thought on the topic and the like.
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Ancient Greek philosophers, from [[Thales]] ([[floruit|fl.]] 550 bc) through even to the Roman period, developed an elaborate theory of what they termed the ''psuchẽ'' (from which the first half of "psychology" is derived), as well as other "psychological" terms – ''nous'', ''thumos'', ''logistikon'', etc.<ref>see e.g., Everson, 1991; Green & Groff, 2003</ref> The most influential of these are the accounts of [[Plato]] (especially in the ''[[Republic]]''),<ref>see, e.g., Robinson, 1995</ref> [[Pythagoras]] and of [[Aristotle]] (esp. ''Peri Psyches'', better known under its Latin title, ''[[De Anima]]'').<ref>see, e.g., Durrant, 1993; Nussbaum & Rorty, 1992</ref> Hellenistic philosophers (viz., the [[Stoics]] and [[Epicurians]]) diverged from the Classical Greek tradition in several important ways, especially in their concern with questions of the physiological basis of the mind.<ref>see e.g., Annas, 1992</ref> The Roman physician [[Galen]] addressed these issues most elaborately and influentially of all. The Greek tradition influenced some Christian and Islamic thought on the topic.
   
In the [[Judeo-Christian]] tradition, the [[Manual of Discipline]] (from the Dead Sea Scrolls, ca. 21 BC–61 AD) notes the division of human nature into two temperaments.
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In the [[Judeo-Christian]] tradition, the [[Manual of Discipline]] (from the [[Dead Sea Scrolls]], ca. 21 BC–61 AD) notes the division of human nature into two temperaments.
   
In Asia, [[China]] had a long history of administering tests of ability as part of its education system. In the 6th century AD, [[Lin Xie]] carried out an early experiment, in which he asked people to draw a square with one hand and at the same time draw a circle with the other (ostensibly to test people's vulnerability to distraction). Some have claimed that this is the first psychology experiment, and, therefore, the beginnings of psychology as an experimental science.
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In Asia, China had a long history of administering tests of ability as part of its education system. In the 6th century AD, [[Lin Xie]] carried out an early experiment, in which he asked people to draw a square with one hand and at the same time draw a circle with the other (ostensibly to test people's vulnerability to distraction). Some have claimed that this is the first psychology experiment, and, therefore, the beginnings of psychology as an experimental science.
   
[[India]], too, had an elaborate theory of "the self" in its [[Vedanta]] philosophical writings (see e.g., Paranjpe, 1998).
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India, too, had an elaborate theory of "the self" in its [[Vedanta]] philosophical writings.<ref>see e.g., Paranjpe, 1998</ref>
   
 
Medieval [[Islamic medicine|Muslim physicians]] also developed practices to treat patients suffering from a variety of "[[Mental disorder|diseases of the mind]]".<ref name=Paladin>A. Vanzan Paladin (1998), "Ethics and neurology in the Islamic world: Continuity and change", ''Italial Journal of Neurological Science'' '''19''': 255-258 [257], Springer-Verlag.</ref>
==Medieval psychological thought==
 
{{POV-section|date=February 2008}}
 
{{see|Islamic psychological thought}}
 
   
 
[[Ahmed ibn Sahl al-Balkhi]] (850–934) was among the first, in this tradition, to discuss disorders related to both the body and the mind, arguing that "if the ''[[nafs]]'' [psyche] gets sick, the body may also find no joy in life and may eventually develop a physical illness."<ref name=Talib>Nurdeen Deuraseh and Mansor Abu Talib (2005), "Mental health in Islamic medical tradition", ''The International Medical Journal'' '''4''' (2), p. 76-79.</ref> Al-Balkhi recognized that the [[body]] and the [[soul]] can be healthy or sick, or "balanced or imbalanced." He wrote that imbalance of the body can result in [[fever]], [[headache]]s and other bodily illnesses, while imbalance of the soul can result in [[anger]], [[anxiety]], [[sadness]] and other ''nafs''-related symptoms. He recognized two types of what we now call [[Clinical depression|depression]]: one caused by known reasons such as [[Grief|loss]] or [[failure]], which can be treated psychologically; and the other caused by unknown reasons possibly caused by physiological reasons, which can be treated through physical medicine.<ref name=Talib/>
The first institutions recognizable as [[insane asylums]] were built in the medieval Islamic world in the 8th century: in Baghdad in 705, Fes in the early 8th century, [Cairo in 800, and Damascus and Aleppo in 1270.<ref>Ibrahim B. Syed PhD, "Islamic Medicine: 1000 years ahead of its times", ''Journal of the International Society for the History of Islamic Medicine'', 2002 (2), p. 2-9 [7-8].</ref> Medieval [[Islamic medicine|Muslim physicians]] also developed practices to treat patients suffering from a variety of "[[Mental disorder|diseases of the mind]]".<ref name=Paladin>A. Vanzan Paladin (1998), "Ethics and neurology in the Islamic world: Continuity and change", ''Italial Journal of Neurological Science'' '''19''': 255-258 [257], Springer-Verlag.</ref>
 
   
 
The [[scientist]] [[Ibn al-Haytham]] (Alhazen) carried out [[experiment]]s in [[visual perception]] and the other [[senses]], including variations in [[Stimulus (physiology)|sensitivity]], sensation of [[touch]], [[perception]] of colors, perception of [[darkness]], the psychological explanation of the [[moon illusion]], and [[binocular vision]].<ref name=Khaleefa>Omar Khaleefa (Summer 1999). "Who Is the Founder of Psychophysics and Experimental Psychology?", ''American Journal of Islamic Social Sciences'' '''16''' (2). [http://i-epistemology.net/attachments/637_V16N2%20Summer%2099%20-%20Khaleefa%20-%20Who%20is%20the%20Founder%20of%20Psychophysics%20and%20Experimental%20Psychology.pdf Link]</ref> [[Al-Biruni]] also employed such experimental methods in examining [[reaction time]].<ref>[[Muhammad Iqbal]], ''[[The Reconstruction of Religious Thought in Islam]]'', "The Spirit of Muslim Culture" ([[cf.]] [http://www.allamaiqbal.com/works/prose/english/reconstruction] and [http://www.witness-pioneer.org/vil/Books/MI_RRTI/chapter_05.htm])</ref>
[[Ahmed ibn Sahl al-Balkhi]] (850–934) was among the first, in this tradition, to discuss disorders related to both the body and the mind, arguing that "if the ''[[nafs]]'' [psyche] gets sick, the body may also find no joy in life and may eventually develop a physical illness."<ref name=Talib>Nurdeen Deuraseh and Mansor Abu Talib (2005), "Mental health in Islamic medical tradition", ''The International Medical Journal'' '''4''' (2), p. 76-79.</ref> Al-Balkhi recognized that the [[body]] and the [[soul]] can be healthy or sick, or "balanced or imbalanced." He wrote that imbalance of the body can result in [[fever]], [[headache]]s and other bodily illnesses, while imbalance of the soul can result in [[anger]], [[anxiety]], [[sadness]] and other ''nafs''-related symptoms. He recognized two types of what we now call [[Clinical depression|depression]]: one caused by known reasons such as [[loss]] or [[failure]], which can be treated psychologically; and the other caused by unknown reasons possibly caused by physiological reasons, which can be treated through physical medicine.<ref name=Talib/>
 
 
In the 1010s, the Iraqi Arab scientist, [[Ibn al-Haytham]] (Alhazen) began to carry out [[experiment]]s in areas related to body and the ''nafs''. In his ''[[Book of Optics]]'', for example, he examined [[visual perception]] and what we now call [[wikt:sensation|sensation]], including variations in [[sensitivity]], sensation of [[touch]], [[perception]] of colors, perception of [[darkness]], the psychological explanation of the [[moon illusion]], and [[binocular vision]].<ref name=Khaleefa>Omar Khaleefa (Summer 1999). "Who Is the Founder of Psychophysics and Experimental Psychology?", ''American Journal of Islamic Social Sciences'' '''16''' (2).</ref><ref name=Steffens>Bradley Steffens (2006). ''Ibn al-Haytham: First Scientist'', Chapter 5. Morgan Reynolds Publishing. ISBN 1599350246.</ref> [[Al-Biruni]] also employed such experimental methods in examining [[reaction time]].<ref>[[Muhammad Iqbal]], ''[[The Reconstruction of Religious Thought in Islam]]'', "The Spirit of Muslim Culture" ([[cf.]] [http://www.allamaiqbal.com/works/prose/english/reconstruction] and [http://www.witness-pioneer.org/vil/Books/MI_RRTI/chapter_05.htm])</ref>
 
   
 
[[Avicenna]], similarly, did early work in the treatment of ''nafs''-related illnesses, and developed a system for associating changes in the [[pulse]] rate with inner feelings. Avicenna also described phenomena we now recognize as neuropsychiatric conditions, including [[hallucination]], [[insomnia]], [[mania]], [[nightmare]], [[melancholia]], [[dementia]], [[epilepsy]], [[paralysis]], [[stroke]], [[Vertigo (medical)|vertigo]] and [[tremor]].<ref>S Safavi-Abbasi, LBC Brasiliense, RK Workman (2007), "The fate of medical knowledge and the neurosciences during the time of Genghis Khan and the Mongolian Empire", ''Neurosurgical Focus'' '''23''' (1), E13, p. 3.</ref>
 
[[Avicenna]], similarly, did early work in the treatment of ''nafs''-related illnesses, and developed a system for associating changes in the [[pulse]] rate with inner feelings. Avicenna also described phenomena we now recognize as neuropsychiatric conditions, including [[hallucination]], [[insomnia]], [[mania]], [[nightmare]], [[melancholia]], [[dementia]], [[epilepsy]], [[paralysis]], [[stroke]], [[Vertigo (medical)|vertigo]] and [[tremor]].<ref>S Safavi-Abbasi, LBC Brasiliense, RK Workman (2007), "The fate of medical knowledge and the neurosciences during the time of Genghis Khan and the Mongolian Empire", ''Neurosurgical Focus'' '''23''' (1), E13, p. 3.</ref>
   
 
Other medieval thinkers who discussed issues related to psychology included:
 
Other medieval thinkers who discussed issues related to psychology included:
 
*[[Ibn Sirin]], who wrote a book on dreams and [[dream interpretation]];<ref name=Amber-375>Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", ''Journal of Religion and Health'' '''43''' (4): 357-377 [375].</ref>
 
  +
*[[Al-Kindi]] (Alkindus), who developed forms of [[music therapy]]{{Citation needed|date=May 2010}}
*[[Ibn Sirin]], who wrote a book on [[dream]]s and [[dream interpretation]];<ref name=Amber-375>Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", ''Journal of Religion and Health'' '''43''' (4): 357-377 [375].</ref>
 
*[[Al-Kindi]] (Alkindus), who developed forms of [[music therapy]];<ref name=Saoud>{{cite web |url=http://www.muslimheritage.com/uploads/Music2.pdf |title=The Arab Contribution to the Music of the Western World |accessdate=2007-01-12 |format=PDF |author=Saoud, R}}</ref>
 
 
*[[Ali ibn Sahl Rabban al-Tabari]], who developed ''al-‘ilaj al-nafs'' (sometimes translated as "[[psychotherapy]]"),<ref name=Amber>Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", ''Journal of Religion and Health'' '''43''' (4): 357-377 [361]</ref>
 
*[[Ali ibn Sahl Rabban al-Tabari]], who developed ''al-‘ilaj al-nafs'' (sometimes translated as "[[psychotherapy]]"),<ref name=Amber>Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", ''Journal of Religion and Health'' '''43''' (4): 357-377 [361]</ref>
 
*[[Al-Farabi]] (Alpharabius), who discussed subjects related to [[social psychology]] and [[consciousness]] studies;<ref name=Amber-363>Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", ''Journal of Religion and Health'' '''43''' (4): 357-377 [363].</ref>
 
*[[Al-Farabi]] (Alpharabius), who discussed subjects related to [[social psychology]] and [[consciousness]] studies;<ref name=Amber-363>Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", ''Journal of Religion and Health'' '''43''' (4): 357-377 [363].</ref>
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*[[Abu al-Qasim al-Zahrawi]] (Abulcasis), described [[neurosurgery]];<ref name=Martinez>Martin-Araguz, A.; Bustamante-Martinez, C.; Fernandez-Armayor, Ajo V.; Moreno-Martinez, J. M. (2002). "Neuroscience in al-Andalus and its influence on medieval scholastic medicine", ''Revista de neurología'' '''34''' (9), p. 877-892.</ref>
 
*[[Abu al-Qasim al-Zahrawi]] (Abulcasis), described [[neurosurgery]];<ref name=Martinez>Martin-Araguz, A.; Bustamante-Martinez, C.; Fernandez-Armayor, Ajo V.; Moreno-Martinez, J. M. (2002). "Neuroscience in al-Andalus and its influence on medieval scholastic medicine", ''Revista de neurología'' '''34''' (9), p. 877-892.</ref>
 
*[[Abū Rayhān al-Bīrūnī]], who described [[reaction time]];<ref>[[Muhammad Iqbal]], ''[[The Reconstruction of Religious Thought in Islam]]'', "The Spirit of Muslim Culture"</ref>
 
*[[Abū Rayhān al-Bīrūnī]], who described [[reaction time]];<ref>[[Muhammad Iqbal]], ''[[The Reconstruction of Religious Thought in Islam]]'', "The Spirit of Muslim Culture"</ref>
*[[Ibn Tufail]], who anticipated the [[tabula rasa]] argument and [[nature versus nurture]] debate.<ref name=Russell>G. A. Russell (1994), ''The 'Arabick' Interest of the Natural Philosophers in Seventeenth-Century England'', pp. 224-262, [[Brill Publishers]], ISBN 9004094598.</ref>
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*[[Ibn Tufail]], who anticipated the [[tabula rasa]] argument and [[nature versus nurture]] debate.<ref name=Russell>G. A. Russell (1994), ''The 'Arabick' Interest of the Natural Philosophers in Seventeenth-Century England'', pp. 224-262, [[Brill Publishers]], ISBN 90-04-09459-8.</ref>
   
[[Ibn Zuhr]] (Avenzoar) described disorders similar to [[meningitis]], intracranial [[thrombophlebitis]], and [[mediastinal germ cell tumor]]s; [[Averroes]] attributed [[Photoreceptor cell|photoreceptor]] properties to the [[retina]]; and [[Maimonides]] described [[rabies]] and [[Deadly nightshade|belladonna]] intoxication.<ref name=Araguz>Martin-Araguz, A.; Bustamante-Martinez, C.; Fernandez-Armayor, Ajo V.; Moreno-Martinez, J. M. (2002). "Neuroscience in al-Andalus and its influence on medieval scholastic medicine", ''Revista de neurología'' '''34''' (9), p. 877-892.</ref>
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[[Ibn Zuhr]] (Avenzoar) described disorders similar to [[meningitis]], intracranial [[thrombophlebitis]], and [[mediastinal germ cell tumor]]s; [[Averroes]] attributed [[Photoreceptor cell|photoreceptor]] properties to the [[retina]]; and [[Maimonides]] described [[rabies]] and [[Deadly nightshade|belladonna]] intoxication.<ref name="Martinez"/>
   
 
[[Witelo]] is considered a precursor of [[perception]] psychology. His ''Perspectiva'' contains much material in [[psychology]], outlining views that are close to modern notions on the [[Association (psychology)|association]] of ideas and on the [[subconscious]].
 
[[Witelo]] is considered a precursor of [[perception]] psychology. His ''Perspectiva'' contains much material in [[psychology]], outlining views that are close to modern notions on the [[Association (psychology)|association]] of ideas and on the [[subconscious]].
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==Beginnings of Western psychology==
 
==Beginnings of Western psychology==
   
Many of [[Ancient philosophy|the Ancients']] writings would have been lost had it not been for the efforts of the Christian, Jewish and Persian translators in the [[House of Wisdom]], the [[House of Knowledge]], and other such institutions, whose glosses and commentaries were later translated into [[Latin translations of the 12th century|Latin in the 12th century]]. However, it is not clear how these sources first came to be used during the [[Renaissance]], and their influence on what would later emerge as the discipline of psychology is a topic of scholarly debate. <ref>[http://ahp.yorku.ca/?p=299 Advances in the History of Psychology » Blog Archive » Presentism in the Service of Diversity?<!--Bot-generated title-->]</ref>
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Many of [[Ancient philosophy|the Ancients']] writings would have been lost had it not been for the efforts of the Christian, Jewish and Persian translators in the [[House of Wisdom]], the [[House of Knowledge]], and other such institutions, whose glosses and commentaries were later translated into [[Latin translations of the 12th century|Latin in the 12th century]]. However, it is not clear how these sources first came to be used during the [[Renaissance]], and their influence on what would later emerge as the discipline of psychology is a topic of scholarly debate.<ref>[http://ahp.yorku.ca/?p=299 Advances in the History of Psychology » Blog Archive » Presentism in the Service of Diversity?<!--Bot-generated title-->]</ref>
   
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===Etymology and early usage of word===
===The word itself===
 
The first use of the term "psychology" is often attributed to the [[German people|German]] [[Scholasticism|scholastic]] [[philosopher]] Rudolf Göckel (1547-1628, often known under the Latin form [[Rudolph Goclenius]]), who published the ''Yucologia hoc est de hominis perfectione, anima, ortu'' in [[Marburg]] in [[1590]]. However, the term seems to have been used more than six decades earlier by the Croatian humanist [[Marko Marulić]] (1450-1524) in the title of his Latin treatise, ''Psichiologia de ratione animae humanae.'' Although the treatise itself has not been preserved, its title appears in a list of Marulic's works compiled by his younger contemporary, [[Franjo Bozicevic-Natalis]] in his "Vita Marci Maruli Spalatensis" (Krstić, 1964). This, of course, may well not have been the very first usage, but it is the earliest documented use at present.
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The first use of the term "psychology" is often attributed to the [[German people|German]] [[Scholasticism|scholastic]] [[philosopher]] Rudolf Göckel (1547–1628, often known under the Latin form [[Rudolph Goclenius]]), who published the ''Psychologia hoc est de hominis perfectione, anima, ortu'' in [[Marburg]] in 1590. However, the term seems to have been used more than six decades earlier by the Croatian humanist [[Marko Marulić]] (1450–1524) in the title of his Latin treatise, ''Psichiologia de ratione animae humanae.'' Although the treatise itself has not been preserved, its title appears in a list of Marulic's works compiled by his younger contemporary, [[Franjo Bozicevic-Natalis]] in his "Vita Marci Maruli Spalatensis" (Krstić, 1964). This, of course, may well not have been the very first usage, but it is the earliest documented use at present.
   
The term did not come into popular usage until the German idealist philosopher, [[Christian Wolff (philosopher)|Christian Wolff]] (1679-1754) used it in his ''Psychologia empirica and Psychologia rationalis'' (1732-1734). This distinction between empirical and rational psychology was picked up in [[Denis Diderot]]'s (1713–1780) ''[[Encyclopédie]]'' (1751–1784) and was popularized in France by [[François-Pierre-Gonthier Maine de Biran|Maine de Biran]] (1766-1824). In England, the term "psychology" overtook "mental philosophy" in the middle of the 19th century, especially in the work of [[William Hamilton]] (1788–1856) (see Danziger, 1997, chap. 3).
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The term did not come into popular usage until the German idealist philosopher, [[Christian Wolff (philosopher)|Christian Wolff]] (1679–1754) used it in his ''Psychologia empirica and Psychologia rationalis'' (1732–1734). This distinction between empirical and rational psychology was picked up in [[Denis Diderot]]'s (1713–1780) ''[[Encyclopédie]]'' (1751–1784) and was popularized in France by [[François-Pierre-Gonthier Maine de Biran|Maine de Biran]] (1766–1824). In England, the term "psychology" overtook "mental philosophy" in the middle of the 19th century, especially in the work of [[Sir William Hamilton, 9th Baronet|William Hamilton]] (1788–1856) (see Danziger, 1997, chap. 3).
   
 
===Enlightenment psychological thought===
 
===Enlightenment psychological thought===
Early psychology was regarded as the study of the soul (in the Christian sense of the term).{{Fact|date=June 2008}} The modern philosophical form of psychology was heavily influenced by the works of [[René Descartes]] (1596–1650), and the debates that he generated, of which the most relevant were the objections to his ''[[Meditations on First Philosophy]]'' (1641), published with the text. Also important to the later development of psychology were his ''[[Passions of the Soul]]'' (1649) and ''[[Treatise on Man]]'' (completed in 1632 but, along with the rest of ''[[The World]]'', withheld from publication after Descartes heard of the [[Catholic Church]]'s condemnation of [[Galileo]]; it was eventually published posthumously, in 1664).
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Early psychology was regarded as the study of the soul (in the Christian sense of the term).<ref>{{cite book |author=Webster, Richard |title=Why Freud Was Wrong: Sin, Science and Psychoanalysis |publisher=The Orwell Press |location=Oxford |year=2005 |page=461 |isbn=0-9515922-5-4 |oclc= |doi= |accessdate=}}</ref> The modern philosophical form of psychology was heavily influenced by the works of [[René Descartes]] (1596–1650), and the debates that he generated, of which the most relevant were the objections to his ''[[Meditations on First Philosophy]]'' (1641), published with the text. Also important to the later development of psychology were his ''[[Passions of the Soul]]'' (1649) and ''[[Treatise on Man]]'' (completed in 1632 but, along with the rest of ''[[The World]]'', withheld from publication after Descartes heard of the [[Catholic Church]]'s condemnation of [[Galileo]]; it was eventually published posthumously, in 1664).
   
Although not educated as a doctor, Descartes did extensive anatomical studies of bulls' hearts and was considered important enough for Harvey to respond to. Descartes was one of the first to endorse Harvey's model of the circulation of the blood, but disagreed with his metaphysical framework to explain it. Descartes dissected animals and human cadavers and as a result was familiar with the research on the flow of blood leading to the conclusion that the body is a complex device that is capable of moving without the soul, thus contradicting the "Doctrine of the Soul". The emergence of psychology as a medical discipline was given a major boost by [[Thomas Willis]], not only in his reference to psychology (the "Doctrine of the Soul") in terms of brain function, but through his detailed 1672 anatomical work, and his treatise "De Anima Brutorum" ("Two Discourses on the Souls of Brutes"). However, Willis acknowledged the influence of Descartes's rival, Pierre Gassendi, as an inspiration for his work.
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Although not educated as a physician, [[Descartes]] did extensive anatomical studies of bulls' hearts and was considered important enough that [[William Harvey]] responded to him. Descartes was one of the first to endorse Harvey's model of the circulation of the blood, but disagreed with his metaphysical framework to explain it. Descartes dissected animals and human cadavers and as a result was familiar with the research on the flow of blood leading to the conclusion that the body is a complex device that is capable of moving without the soul, thus contradicting the "Doctrine of the Soul". The emergence of psychology as a medical discipline was given a major boost by [[Thomas Willis]], not only in his reference to psychology (the "Doctrine of the Soul") in terms of brain function, but through his detailed 1672 anatomical work, and his treatise "De Anima Brutorum" ("Two Discourses on the Souls of Brutes"). However, Willis acknowledged the influence of Descartes's rival, Pierre Gassendi, as an inspiration for his work.
   
The philosophers of the British [[Empiricist]] and [[Associationist]] schools had a profound impact on the later course of experimental psychology. [[John Locke]]'s ''[[An Essay Concerning Human Understanding]]'' (1689), [[George Berkeley]]'s ''[[Treatise Concerning the Principles of Human Knowledge]]'' (1710), and [[David Hume]]'s ''[[A Treatise of Human Nature]]'' (1739–1740) were particularly influential, as were [[David Hartley]]'s ''[[Observations on Man]]'' (1749) and [[John Stuart Mill]]'s ''[[A System of Logic]]''. (1843). Also notable was the work of some Continental [[Rationalist]] philosophers, especially [[Baruch Spinoza]]'s (1632–1677) ''[[On the Improvement of the Understanding]]'' (1662) and [[Gottfried Wilhelm Leibniz]]'s (1646–1716) ''[[New Essays on Human Understanding]]'' (completed 1705, published 1765).
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The philosophers of the British [[Empiricist]] and [[Associationist]] schools had a profound impact on the later course of experimental psychology. [[John Locke]]'s ''[[An Essay Concerning Human Understanding]]'' (1689), [[George Berkeley]]'s ''[[Treatise Concerning the Principles of Human Knowledge]]'' (1710), and [[David Hume]]'s ''[[A Treatise of Human Nature]]'' (1739–1740) were particularly influential, as were [[David Hartley (philosopher)|David Hartley]]'s ''[[Observations on Man]]'' (1749) and [[John Stuart Mill]]'s ''[[A System of Logic]]''. (1843). Also notable was the work of some Continental [[Rationalist]] philosophers, especially [[Baruch Spinoza]]'s (1632–1677) ''[[On the Improvement of the Understanding]]'' (1662) and [[Gottfried Wilhelm Leibniz]]'s (1646–1716) ''[[New Essays on Human Understanding]]'' (completed 1705, published 1765). [[Rauch, Frederick A.]] (1806–1841) ''[[Psychology, or a view of the human soul, including anthropology]]'' (1840).
   
 
The Danish philosopher [[Søren Kierkegaard]] also influenced the humanistic, existential, and modern psychological schools with his works ''[[The Concept of Anxiety]]'' (1844) and ''[[The Sickness Unto Death]]'' (1849).
 
The Danish philosopher [[Søren Kierkegaard]] also influenced the humanistic, existential, and modern psychological schools with his works ''[[The Concept of Anxiety]]'' (1844) and ''[[The Sickness Unto Death]]'' (1849).
   
 
===Transition to contemporary psychology===
 
===Transition to contemporary psychology===
Also influential on the emerging discipline of psychology were debates surrounding the efficacy of [[Mesmerism]] (hypnosis) and the value of [[phrenology]]. The former was developed in the 1770s by Austrian physician [[Anton Mesmer]] (1734–1815) who claimed to use the power of gravity, and later of "animal magnetism," to cure various physical and mental ills. As Mesmer and his treatment became increasingly fashionable in both Vienna and Paris, it also began to come under the scrutiny of suspicious officials. In 1784, an investigation was commissioned in Paris by [[Louis XVI of France|King Louis]] which included American ambassador [[Benjamin Franklin]], chemist [[Antoine Lavoisier]] and physician [[Joseph-Ignace Guillotin]] (later the popularizer of the guillotine). They concluded that Mesmer's method was useless. [[Abbé Faria,]] an Indo-Portuguese priest, revived public attention in animal magnetism. Unlike Mesmer, Faria claimed that the effect was 'generated from within the mind’ by the power of expectancy and cooperation of the patient.
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Also influential on the emerging discipline of psychology were debates surrounding the efficacy of [[Mesmerism]] (a precursor to hypnosis) and the value of [[phrenology]]. The former was developed in the 1770s by Austrian physician [[Anton Mesmer]] (1734–1815) who claimed to use the power of gravity, and later of "[[animal magnetism]]", to cure various physical and mental ills. As Mesmer and his treatment became increasingly fashionable in both Vienna and Paris, it also began to come under the scrutiny of suspicious officials. In 1784, an investigation was commissioned in Paris by King Louis XVI which included American ambassador Benjamin Franklin, chemist Antoine Lavoisier and physician Joseph-Ignace Guillotin (later the popularizer of the guillotine). They concluded that Mesmer's method was useless. [[Abbé Faria]], an Indo-Portuguese priest, revived public attention in animal magnetism. Unlike Mesmer, Faria claimed that the effect was 'generated from within the mind’ by the power of expectancy and cooperation of the patient.
Although disputed, the "magnetic" tradition continued among Mesmer's students and others, resurfacing in England in the 19th century in the work of physicians [[John Elliotson]] (1791–1868), [[James Esdaile]] (1808–1859), and [[James Braid]] (1795–1860), who renamed it "hypnotism." Mesmerism also continued to have a strong social (if not medical) following in England through the 19th century (see Winter, 1998). Faria's approach was significantly extended by the clinical and theoretical work of [[Ambroise-Auguste Liébeault]] and [[Hippolyte Bernheim]] of the [[Nancy School]]. Faria's theoretical position, and the subsequent experiences of those in the Nancy School made significant contributions to the later autosuggestion techniques of [[Émile Coué]]. It was adopted for the treatment of [[hysteria]] by the director of Paris's [[Salpêtrière]] Hospital, [[Jean-Martin Charcot]] (1825–1893).
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Although disputed, the "magnetic" tradition continued among Mesmer's students and others, resurfacing in England in the 19th century in the work of the physician [[John Elliotson]] (1791–1868), and the surgeons [[James Esdaile]] (1808–1859), and [[James Braid]] (1795–1860) (who reconceptualized it as property of the subject's mind rather than a "power" of the Mesmerist's, and relabeled it "hypnotism"). Mesmerism also continued to have a strong social (if not medical) following in England through the 19th century (see Winter, 1998). Faria's approach was significantly extended by the clinical and theoretical work of [[Ambroise-Auguste Liébeault]] and [[Hippolyte Bernheim]] of the [[Nancy School]]. Faria's theoretical position, and the subsequent experiences of those in the Nancy School made significant contributions to the later autosuggestion techniques of [[Émile Coué]]. It was adopted for the treatment of [[hysteria]] by the director of Paris's [[Salpêtrière]] Hospital, [[Jean-Martin Charcot]] (1825–1893).
   
[[Phrenology]] began as "organology", a theory of brain structure developed by the German physician, [[Franz Joseph Gall]] (1758–1828). Gall argued that the brain is divided into a large number of functional "organs," each responsible for particular human mental abilities and dispositions – hope, love, spirituality, greed, language, the abilities to detect the size, form, and color of objects, etc. He argued that the larger each of these organs are, the greater the power of the corresponding mental trait. Further, he argued that one could detect the sizes of the organs in a given individual by feeling the surface of that person's skull. Gall's ultra-localizationist position with respect to the brain was soon attacked, most notably by French anatomist [[Pierre Flourens]] (1794–1867), who conducted ablation studies (on chickens) which purported to demonstrate little or no cerebral localization of function. Although Gall had been a serious (if misguided) researcher, his theory was taken by his assistant, [[Johann Spurzheim|Johann Gaspar Spurzheim]] (1776–1832), and developed into the profitable, popular enterprise of [[phrenology]], which soon spawned, especially in Britain, a thriving industry of independent practitioners. In the hands of Scottish religious leader [[George Combe]] (1788–1858) (whose book ''[[The Constitution of Man]]'' was one of the best-sellers of the century), phrenology became strongly associated with political reform movements and egalitarian principles (see, e.g., Shapin, 1975; but also see van Wyhe, 2004). Phrenology soon spread to America as well, where itinerant practical phrenologists assessed the mental well-being of willing customers (see Sokal, 2001).
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[[Phrenology]] began as "organology", a theory of brain structure developed by the German physician, [[Franz Joseph Gall]] (1758–1828). Gall argued that the brain is divided into a large number of functional "organs", each responsible for particular human mental abilities and dispositions – hope, love, spirituality, greed, language, the abilities to detect the size, form, and color of objects, etc. He argued that the larger each of these organs are, the greater the power of the corresponding mental trait. Further, he argued that one could detect the sizes of the organs in a given individual by feeling the surface of that person's skull. Gall's ultra-localizationist position with respect to the brain was soon attacked, most notably by French anatomist [[Pierre Flourens]] (1794–1867), who conducted ablation studies (on chickens) which purported to demonstrate little or no cerebral localization of function. Although Gall had been a serious (if misguided) researcher, his theory was taken by his assistant, [[Johann Spurzheim|Johann Gaspar Spurzheim]] (1776–1832), and developed into the profitable, popular enterprise of [[phrenology]], which soon spawned, especially in Britain, a thriving industry of independent practitioners. In the hands of Scottish religious leader [[George Combe]] (1788–1858) (whose book ''[[The Constitution of Man]]'' was one of the best-sellers of the century), phrenology became strongly associated with political reform movements and egalitarian principles (see, e.g., Shapin, 1975; but also see van Wyhe, 2004). Phrenology soon spread to America as well, where itinerant practical phrenologists assessed the mental well-being of willing customers (see Sokal, 2001).
   
==The Emergence of German Experimental Psychology==
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==Emergence of German experimental psychology==
   
Until the middle of the [[19th century]], psychology was widely regarded as a branch of [[philosophy]]. For instance, [[Immanuel Kant]] (1724–1804) declared in his ''[[Metaphysical Foundations of Natural Science]]'' (1786) that a scientific psychology "properly speaking" is impossible. However, Kant proposed what looks to modern eyes very much like an empirical psychology in his ''[[Anthropology from a Pragmatic Point of View]]'' (1798).
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Until the middle of the 19th century, psychology was widely regarded as a branch of [[philosophy]]. For instance, [[Immanuel Kant]] (1724–1804) declared in his ''[[Metaphysical Foundations of Natural Science]]'' (1786) that psychology cannot be made into a "proper" science because its phenomena cannot be rendered in mathematical form, among other reasons. However, Kant proposed what looks to modern eyes very much like an empirical psychology in his ''[[Anthropology from a Pragmatic Point of View]]'' (1798).
   
[[Johann Friedrich Herbart]] (1776-1841) took issue with Kant's conclusion and attempted to develop a mathematical basis for a scientific psychology. Although he was unable to render his theory empirically testable, his efforts did lead scientists such as [[Ernst Heinrich Weber]] (1795-1878) and [[Gustav Theodor Fechner]] (1801-1887) to attempt to measure the mathematical relationships between the physical magnitudes of external stimuli and the psychological intensities of the resulting sensations. Fechner (1860) is the originator of the term [[psychophysics]].
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[[Johann Friedrich Herbart]] (1776–1841) took issue with Kant's conclusion and attempted to develop a mathematical basis for a scientific psychology. Although he was unable to empirically realize the terms of his psychological theory, his efforts did lead scientists such as [[Ernst Heinrich Weber]] (1795–1878) and [[Gustav Theodor Fechner]] (1801–1887) to attempt to measure the mathematical relationships between the physical magnitudes of external stimuli and the psychological intensities of the resulting sensations. Fechner (1860) is the originator of the term [[psychophysics]].
   
Meanwhile, individual differences in reaction time had become a critical issue in the field of astronomy, under the name of the "[[personal equation]]". Early researches by [[Friedrich Wilhelm Bessel]] (1784-1846) in [[Königsberg]] and [[Adolf Hirsch]] led to the development of a highly precise [[chronoscope]] by [[Mathias Hipp]] that, in turn, was based on a design by [[Charles Wheatstone]] for a device that measured the speed of artillery shells (Edgell & Symes, 1906). Other timing instruments were borrowed from physiology (e.g., the [[kymograph]]) and adapted for use by the Utrecht ophthamologist [[Franciscus Donders]] (1818-1899) and his student [[Johan Jacob de Jaager]] in measuring the duration of simple mental decisions.
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Meanwhile, individual differences in reaction time had become a critical issue in the field of astronomy, under the name of the "[[personal equation]]". Early researches by [[Friedrich Wilhelm Bessel]] (1784–1846) in [[Königsberg]] and [[Adolf Hirsch]] led to the development of a highly precise [[chronoscope]] by [[Mathias Hipp]] that, in turn, was based on a design by [[Charles Wheatstone]] for a device that measured the speed of artillery shells (Edgell & Symes, 1906). Other timing instruments were borrowed from physiology (e.g., the [[kymograph]]) and adapted for use by the Utrecht ophthalmologist [[Franciscus Donders]] (1818–1899) and his student [[Johan Jacob de Jaager]] in measuring the duration of simple mental decisions.
   
The 19th century was also the period in which physiology, including neurophysiology, professionalized and saw some of its most significant discoveries. Among its leaders were [[Charles Bell]] (1774-1843) and [[François Magendie]] (1783-1855) who independently discovered the distinction between sensory and motor nerves in the spinal column, [[Johannes Peter Müller|Johannes Müller]] (1801-1855) who proposed the [[Law of specific nerve energies|doctrine of specific nerve energies]], [[Emil du Bois-Reymond]] (1818-1896) who studied the electrical basis of muscle contraction, [[Pierre Paul Broca]] (1824-1880) and [[Carl Wernicke]] (1848-1905) who identified areas of the brain responsible for different aspects of language, as well as [[Gustav Fritsch]] (1837-1927), [[Eduard Hitzig]] (1839-1907), and [[David Ferrier]] (1843-1924) who localized sensory and motor areas of the brain. One of the principal founders of experimental physiology, [[Hermann von Helmholtz]] (1821-1894), conducted studies of a wide range of topics that would later be of interest to psychologists – the speed of neural transmission, the natures of sound and color, and of our perceptions of them, etc. In the 1860s, while he held a position in [[University of Heidelberg|Heidelberg]], Helmholtz engaged as an assistant a young M.D. named [[Wilhelm Wundt]]. Wundt employed the equipment of the physiology laboratory – [[chronoscope]], [[kymograph]], and various peripheral devices – to address more complicated psychological questions than had until then been considered experimentally. In particular he was interested in the nature of [[apperception]] – the point at which a perception comes into the central focus of conscious awareness.
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The 19th century was also the period in which physiology, including neurophysiology, professionalized and saw some of its most significant discoveries. Among its leaders were [[Charles Bell]] (1774–1843) and [[François Magendie]] (1783–1855) who independently discovered the distinction between sensory and motor nerves in the spinal column, [[Johannes Peter Müller|Johannes Müller]] (1801–1855) who proposed the [[Law of specific nerve energies|doctrine of specific nerve energies]], [[Emil du Bois-Reymond]] (1818–1896) who studied the electrical basis of muscle contraction, [[Pierre Paul Broca]] (1824–1880) and [[Carl Wernicke]] (1848–1905) who identified areas of the brain responsible for different aspects of language, as well as [[Gustav Fritsch]] (1837–1927), [[Eduard Hitzig]] (1839–1907), and [[David Ferrier]] (1843–1924) who localized sensory and motor areas of the brain. One of the principal founders of experimental physiology, [[Hermann von Helmholtz]] (1821–1894), conducted studies of a wide range of topics that would later be of interest to psychologists – the speed of neural transmission, the natures of sound and color, and of our perceptions of them, etc. In the 1860s, while he held a position in [[University of Heidelberg|Heidelberg]], Helmholtz engaged as an assistant a young M.D. named [[Wilhelm Wundt]]. Wundt employed the equipment of the physiology laboratory – [[chronoscope]], [[kymograph]], and various peripheral devices – to address more complicated psychological questions than had, until then, been investigated experimentally. In particular he was interested in the nature of [[apperception]] – the point at which a perception occupies the central focus of conscious awareness.
   
In 1874 Wundt took up a professorship in [[Zurich]], where he published his landmark textbook, ''[[Grundzüge der physiologischen Psychologie]]'' (''Principles of Physiological Psychology'', 1874). Moving to a more prestigious professorship in [[Leipzig]] in 1875, Wundt founded a laboratory specifically dedicated to original research in experimental psychology in 1879, the first laboratory of its kind in the world. In 1883, he launched a journal in which to publish the results of his, and his students', research, ''[[Philosophische Studien]]'' (''Philosophical Studies'') (For more on Wundt, see, e.g., Bringmann & Tweney, 1980; Rieber & Robinson, 2001). Wundt attracted a large number of students not only from Germany, but also from abroad. Among his most influential American students were [[G. Stanley Hall]] (who had already obtained a PhD from Harvard under the supervision of [[William James]]), [[James McKeen Cattell]] (who was Wundt's first assistant), and [[Frank Angell]]. The most influential British student was [[Edward Bradford Titchener]] (who later became professor at [[Cornell University|Cornell]]).
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In 1874 Wundt took up a professorship in [[Zürich]], where he published his landmark textbook, ''[[Grundzüge der physiologischen Psychologie]]'' (''Principles of Physiological Psychology'', 1874). Moving to a more prestigious professorship in [[Leipzig]] in 1875, Wundt founded a laboratory specifically dedicated to original research in experimental psychology in 1879, the first laboratory of its kind in the world. In 1883, he launched a journal in which to publish the results of his, and his students', research, ''[[Philosophische Studien]]'' (''Philosophical Studies'') (For more on Wundt, see, e.g., Bringmann & Tweney, 1980; Rieber & Robinson, 2001). Wundt attracted a large number of students not only from Germany, but also from abroad. Among his most influential American students were [[G. Stanley Hall]] (who had already obtained a PhD from Harvard under the supervision of [[William James]]), [[James McKeen Cattell]] (who was Wundt's first assistant), and [[Frank Angell]]. The most influential British student was [[Edward Bradford Titchener]] (who later became professor at [[Cornell University|Cornell]]).
   
Experimental psychology laboratories were soon also established at Berlin by [[Carl Stumpf]] (1848-1936) and at Göttingen by [[Georg Elias Müller]] (1850-1934). Another major German experimental psychologist of the era, though he did not direct his own research institute, was [[Hermann Ebbinghaus]] (1850-1909).
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Experimental psychology laboratories were soon also established at Berlin by [[Carl Stumpf]] (1848–1936) and at Göttingen by [[Georg Elias Müller]] (1850–1934). Another major German experimental psychologist of the era, though he did not direct his own research institute, was [[Hermann Ebbinghaus]] (1850–1909).
   
Experimentation was not the only approach to psychology in the German-speaking world at this time. Starting in the [[1890s]], employing the case study technique, the Viennese physician [[Sigmund Freud]] developed and applied the methods of hypnosis, free association, and dream interpretation to reveal putatively [[unconscious mind|unconscious]] beliefs and desires that he argued were the underlying causes of his patients' "[[hysteria]]." He dubbed this approach [[psychoanalysis]]. Freudian psychoanalysis is particularly notable for the emphasis it places on the course of an individual's sexual development in [[pathogenesis]]. Psychoanalytic concepts have had a strong and lasting influence on Western culture, particularly on the arts. Although its scientific contribution is still a matter of debate, both Freudian and [[Carl Jung|Jungian]] psychology revealed the existence of compartmentalized thinking, in which some behavior and thoughts are hidden from consciousness – yet operative as part of the complete personality. Hidden agendas, a bad conscience, or a sense of guilt, are examples of the existence of mental processes in which the individual is not conscious, through choice or lack of understanding, of some aspects of their personality and subsequent behavior.
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Experimentation was not the only approach to psychology in the German-speaking world at this time. Starting in the 1890s, employing the case study technique, the Viennese physician [[Sigmund Freud]] developed and applied the methods of hypnosis, free association, and dream interpretation to reveal putatively [[unconscious mind|unconscious]] beliefs and desires that he argued were the underlying causes of his patients' "[[hysteria]]." He dubbed this approach [[psychoanalysis]]. Freudian psychoanalysis is particularly notable for the emphasis it places on the course of an individual's sexual development in [[pathogenesis]]. Psychoanalytic concepts have had a strong and lasting influence on Western culture, particularly on the arts. Although its scientific contribution is still a matter of debate, both Freudian and [[Carl Jung|Jungian]] psychology revealed the existence of compartmentalized thinking, in which some behavior and thoughts are hidden from consciousness – yet operative as part of the complete personality. Hidden agendas, a bad conscience, or a sense of guilt, are examples of the existence of mental processes in which the individual is not conscious, through choice or lack of understanding, of some aspects of their personality and subsequent behavior.
   
 
Psychoanalysis examines mental processes which affect the ego. An understanding of these theoretically allows the individual greater choice and consciousness with a healing effect in neurosis and occasionally in psychosis, both of which [[Richard von Krafft-Ebing]] defined as "diseases of the personality". [[Carl Jung|Carl G. Jung]] was an associate of Freud's who later broke with him over Freud's emphasis on sexuality. Working with concepts of the unconscious first noted during the 1800s (by [[John Stuart Mill]], Krafft-Ebing, [[Pierre Janet]], [[Théodore Flournoy]] and others), Jung defined four mental functions which relate to and define the ego, the conscious self. Sensation (which tell consciousness that something is there), feelings (which consist of value judgments, and motivate our reaction to what we have sensed), intellect (an analytic function that compares this event to all known events and gives it a class and category, allowing us to understand a situation within a historical process, personal or public), and intuition (a mental function with access to deep behavioral patterns, intuition can suggest unexpected solutions or predict unforeseen consequences, "as if seeing around corners" as Jung put it). Jung insisted on an empirical psychology in which theories must be based on facts and not on the psychologist's projections or expectations.
 
Psychoanalysis examines mental processes which affect the ego. An understanding of these theoretically allows the individual greater choice and consciousness with a healing effect in neurosis and occasionally in psychosis, both of which [[Richard von Krafft-Ebing]] defined as "diseases of the personality". [[Carl Jung|Carl G. Jung]] was an associate of Freud's who later broke with him over Freud's emphasis on sexuality. Working with concepts of the unconscious first noted during the 1800s (by [[John Stuart Mill]], Krafft-Ebing, [[Pierre Janet]], [[Théodore Flournoy]] and others), Jung defined four mental functions which relate to and define the ego, the conscious self. Sensation (which tell consciousness that something is there), feelings (which consist of value judgments, and motivate our reaction to what we have sensed), intellect (an analytic function that compares this event to all known events and gives it a class and category, allowing us to understand a situation within a historical process, personal or public), and intuition (a mental function with access to deep behavioral patterns, intuition can suggest unexpected solutions or predict unforeseen consequences, "as if seeing around corners" as Jung put it). Jung insisted on an empirical psychology in which theories must be based on facts and not on the psychologist's projections or expectations.
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==Early American Psychology==
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==Early American psychology==
Around 1875, the [[Harvard]] physiology instructor (as he then was), [[William James]], opened a small experimental psychology demonstration laboratory for use with his courses. The laboratory was never used, in those days, for original research, and so controversy remains as to whether it is to be regarded as the "first" experimental psychology laboratory or not. In 1878, James gave a series of lectures at [[Johns Hopkins University]] entitled “The Senses and the Brain and their Relation to Thought” in which he argued, ''contra'' [[Thomas Henry Huxley]], that consciousness is not epiphenomenal, but must have an evolutionary function, or it would not have been naturally selected in humans. The same year James was contracted by [[Henry Holt]] to write a textbook on the "new" experimental psychology. If he had written it quickly, it would have been the first English-language textbook on the topic. It was twelve years, however, before his two-volume ''[[Principles of Psychology]]'' would be published. In the meantime textbooks were published by [[George Trumbull Ladd]] of Yale (1887) and [[James Mark Baldwin]] then of [[Lake Forest College]] (1889).
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Around 1875 the [[Harvard]] physiology instructor (as he then was), [[William James]], opened a small experimental psychology demonstration [[laboratory]] for use with his courses. The [[laboratory]] was never used, in those days, for original research, and so controversy remains as to whether it is to be regarded as the "first" experimental psychology laboratory or not. In 1878, James gave a series of lectures at [[Johns Hopkins University]] entitled "The Senses and the Brain and their Relation to Thought" in which he argued, ''contra'' [[Thomas Henry Huxley]], that consciousness is not [[epiphenomenalism|epiphenomenal]], but must have an evolutionary function, or it would not have been naturally selected in humans. The same year James was contracted by [[Henry Holt (publisher)|Henry Holt]] to write a textbook on the "new" experimental psychology. If he had written it quickly, it would have been the first English-language textbook on the topic. It was twelve years, however, before his two-volume ''[[Principles of Psychology]]'' would be published. In the meantime textbooks were published by [[George Trumbull Ladd]] of [[Yale]] (1887) and [[James Mark Baldwin]] then of [[Lake Forest College]] (1889).
   
In 1879 [[Charles Sanders Peirce]] was hired as a philosophy instructor at [[Johns Hopkins University]]. Although better known for his astronomical and philosophical work, Peirce also conducted what are perhaps the first American psychology experiments, on the subject of color vision, published in 1877 in the ''American Journal of Science'' (see Cadwallader, 1974). Peirce and his student [[Joseph Jastrow]] published "On Small Differences in Sensation" in the ''Memoirs of the National Academy of Sciences'', in 1884. In 1882, Peirce was joined at Johns Hopkins by [[G. Stanley Hall]], who opened the first American research laboratory devoted to experimental psychology in 1883. Peirce was forced out of his position by scandal and Hall was awarded the only professorship in philosophy at Johns Hopkins. In 1887 Hall founded the ''[[American Journal of Psychology]]'', which published work primarily emanating from his own laboratory. In 1888 Hall left his Johns Hopkins professorship for the presidency of the newly-founded [[Clark University]], where he remained for the rest of his career.
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In 1879 [[Charles Sanders Peirce]] was hired as a philosophy instructor at [[Johns Hopkins University]]. Although better known for his astronomical and philosophical work, Peirce also conducted what are perhaps the first American psychology experiments, on the subject of color vision, published in 1877 in the ''American Journal of Science'' (see Cadwallader, 1974). Peirce and his student [[Joseph Jastrow]] published "On Small Differences in Sensation" in the ''Memoirs of the National Academy of Sciences'', in 1884. In 1882, Peirce was joined at Johns Hopkins by [[G. Stanley Hall]], who opened the first American research laboratory devoted to experimental psychology in 1883. Peirce was forced out of his position by scandal and Hall was awarded the only professorship in philosophy at Johns Hopkins. In 1887 Hall founded the ''[[American Journal of Psychology]]'', which published work primarily emanating from his own laboratory. In 1888 Hall left his Johns Hopkins professorship for the presidency of the newly founded [[Clark University]], where he remained for the rest of his career.
   
Soon, experimental psychology laboratories were opened at the [[University of Pennsylvania]] (in 1887, by [[James McKeen Cattell]]), [[Indiana University]] (1888, [[William Lowe Bryan]]), the [[University of Wisconsin–Madison]] (1888, [[Joseph Jastrow]]), [[Clark University]] (1889, [[Edmund Clark Sanford]]), the McLean Asylum (1889, [[William Noyes]]), and the [[University of Nebraska]] (1889, [[Harry Kirke Wolfe]]).
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Soon, experimental psychology laboratories were opened at the [[University of Pennsylvania]] (in 1887, by [[James McKeen Cattell]]), [[Indiana University]] (1888, [[William Lowe Bryan]]), the [[University of Wisconsin–Madison|University of Wisconsin]] (1888, [[Joseph Jastrow]]), [[Clark University]] (1889, [[Edmund Sanford]]), the McLean Asylum (1889, William Noyes), and the [[University of Nebraska]] (1889, [[Harry Kirke Wolfe]]).
 
However, it was [[Princeton University]]'s Eno Hall, built in 1924, that became the first university building in the United States to be devoted entirely to experimental psychology when it became the home of the university's [[Princeton University Department of Psychology|Department of Psychology]].<ref>Glucksberg, S. History of the psychology department: Princeton University. Retrieved July 9, 2008 from http://psychlib.princeton.edu/history.htm</ref>
 
However, it was [[Princeton University]]'s Eno Hall, built in 1924, that became the first university building in the United States to be devoted entirely to experimental psychology when it became the home of the university's [[Princeton University Department of Psychology|Department of Psychology]].<ref>Glucksberg, S. History of the psychology department: Princeton University. Retrieved July 9, 2008 from http://psychlib.princeton.edu/history.htm</ref>
   
In [[1890]], [[William James]]' ''[[Principles of Psychology]]'' finally appeared, and rapidly became the most influential textbook in the history of American psychology. It laid many of the foundations for the sorts of questions that American psychologists would focus on for years to come. The book's chapters on consciousness, emotion, and habit were particularly agenda-setting.
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In 1890, [[William James]]' ''[[Principles of Psychology]]'' finally appeared, and rapidly became the most influential textbook in the history of American psychology. It laid many of the foundations for the sorts of questions that American psychologists would focus on for years to come. The book's chapters on consciousness, emotion, and habit were particularly agenda-setting.
   
One of those who felt the impact of James' ''[[Principles of Psychology|Principles]]'' was [[John Dewey]], then professor of philosophy at the [[University of Michigan]]. With his junior colleagues, [[James Hayden Tufts]] (who founded the psychology laboratory at Michigan) and [[George Herbert Mead]], and his student [[James Rowland Angell]], this group began to reformulate psychology, focusing more strongly on the social environment and on the ''activity'' of mind and behavior than the psychophysics-inspired physiological psychology of Wundt and his followers had heretofore. Tufts left Michigan for another junior position at the newly-founded [[University of Chicago]] in 1892. A year later, the senior philosopher at Chicago resigned, and Tufts recommended to Chicago president [[William Rainey Harper]] that Dewey be offered the position. After initial reluctance, Dewey was hired in 1894. Dewey soon filled out the department with his Michigan companions Mead and Angell. These four formed the core of the [[Chicago School of psychology]].
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One of those who felt the impact of James' ''[[Principles of Psychology|Principles]]'' was [[John Dewey]], then professor of philosophy at the [[University of Michigan]]. With his junior colleagues, [[James Hayden Tufts]] (who founded the psychology laboratory at Michigan) and [[George Herbert Mead]], and his student [[James Rowland Angell]], this group began to reformulate psychology, focusing more strongly on the social environment and on the ''activity'' of mind and behavior than the psychophysics-inspired physiological psychology of Wundt and his followers had heretofore. Tufts left Michigan for another junior position at the newly founded [[University of Chicago]] in 1892. A year later, the senior philosopher at Chicago resigned, and Tufts recommended to Chicago president [[William Rainey Harper]] that Dewey be offered the position. After initial reluctance, Dewey was hired in 1894. Dewey soon filled out the department with his Michigan companions Mead and Angell. These four formed the core of the [[Chicago School of psychology]].
   
In 1892, [[G. Stanley Hall]] invited 30-some psychologists and philosophers to a meeting at [[Clark University|Clark]] with the purpose of founding a new [[American Psychological Association]] (APA). (On the history of the APA, see Evans, Staudt Sexton, & Cadwallader, 1992.) The first annual meeting of the APA was held later that year, hosted by [[George S. Fullerton]] at the [[University of Pennsylvania]]. Almost immediately tension arose between the experimentally- and philosophically-inclined members of the APA. [[Edward Bradford Titchener]] and [[Lightner Witmer]] launched an attempt to either establish a separate "Section" for philosophical presentations, or to eject the philosophers altogether. After nearly a decade of debate a [[Western Philosophical Association]] was founded and held its first meeting in 1901 at the [[University of Nebraska]]. The following year (1902), an [[American Philosophical Association]] held its first meeting at [[Columbia University]]. These ultimately became the Central and Eastern Divisions of the modern [[American Philosophical Association]].
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In 1892, [[G. Stanley Hall]] invited 30-some psychologists and philosophers to a meeting at [[Clark University|Clark]] with the purpose of founding a new [[American Psychological Association]] (APA). (On the history of the APA, see Evans, Staudt Sexton, & Cadwallader, 1992.) The first annual meeting of the APA was held later that year, hosted by [[George Stuart Fullerton]] at the [[University of Pennsylvania]]. Almost immediately tension arose between the experimentally and philosophically inclined members of the APA. [[Edward Bradford Titchener]] and [[Lightner Witmer]] launched an attempt to either establish a separate "Section" for philosophical presentations, or to eject the philosophers altogether. After nearly a decade of debate a [[Western Philosophical Association]] was founded and held its first meeting in 1901 at the [[University of Nebraska]]. The following year (1902), an [[American Philosophical Association]] held its first meeting at [[Columbia University]]. These ultimately became the Central and Eastern Divisions of the modern [[American Philosophical Association]].
   
In 1894, a number of psychologists, unhappy with the parochial editorial policies of the ''[[American Journal of Psychology]]'' approached Hall about appointing an editorial board and opening the journal out to more psychologists not within Hall's immediate circle. Hall refused, so [[James McKeen Cattell]] (then of [[Columbia University|Columbia]]) and [[James Mark Baldwin]] (then of [[Princeton University]]'s [[Princeton University Department of Psychology|Department of Psychology]]) co-founded a new journal, ''[[Psychological Review]]'', which rapidly grew to become a major outlet for American psychological researchers.
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In 1894, a number of psychologists, unhappy with the parochial editorial policies of the ''[[American Journal of Psychology]]'' approached Hall about appointing an editorial board and opening the journal out to more psychologists not within Hall's immediate circle. Hall refused, so [[James McKeen Cattell]] (then of [[Columbia University|Columbia]]) and [[James Mark Baldwin]] (then of [[Princeton University|Princeton]]) co-founded a new journal, ''[[Psychological Review]]'', which rapidly grew to become a major outlet for American psychological researchers.
   
Beginning in 1895, [[James Mark Baldwin]] ([[Princeton University Department of Psychology]]) and [[Edward Bradford Titchener]] ([[Cornell University|Cornell]]) entered into an increasingly acrimonious dispute over the correct interpretation of some anomalous reaction time findings that had come from the [[Wundt]] laboratory (originally reported by [[Ludwig Lange]] and [[James McKeen Cattell]]). In 1896, [[James Rowland Angell]] and [[Addison W. Moore]] (Chicago) published a series of experiments in ''[[Psychological Review]]'' appearing to show that Baldwin was the more correct of the two. However, they interpreted their findings in light of [[John Dewey]]'s new approach to psychology, which rejected the traditional stimulus-response understanding of the reflex arc in favor of a "circular" account in which what serves as "stimulus" and what as "response" depends on how one views the situation. The full position was laid out in Dewey's landmark article "The Reflex Arc Concept in Psychology" which also appeared in ''[[Psychological Review]]'' in 1896.
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Beginning in 1895, [[James Mark Baldwin]] and [[Edward Bradford Titchener]] ([[Cornell University|Cornell]]) entered into an increasingly acrimonious dispute over the correct interpretation of some anomalous reaction time findings that had come from the [[Wundt]] laboratory (originally reported by [[Ludwig Lange]] and [[James McKeen Cattell]]). In 1896, [[James Rowland Angell]] and [[Addison W. Moore]] (Chicago) published a series of experiments in ''[[Psychological Review]]'' appearing to show that Baldwin was the more correct of the two. However, they interpreted their findings in light of [[John Dewey]]'s new approach to psychology, which rejected the traditional stimulus-response understanding of the reflex arc in favor of a "circular" account in which what serves as "stimulus" and what as "response" depends on how one views the situation. The full position was laid out in Dewey's landmark article "The Reflex Arc Concept in Psychology" which also appeared in ''[[Psychological Review]]'' in 1896.
   
[[Edward Bradford Titchener|Titchener]] responded in ''[[Philosophical Review]]'' (1898, 1899) by distinguishing his austere "structural" approach to psychology from what he termed the Chicago group's more applied "functional" approach, and thus began the first major theoretical rift in American psychology between [[Structuralism (psychology)]] and [[Functional psychology|Functionalism]]. The group at [[Columbia University|Columbia]], led by [[James McKeen Cattell]], [[Edward L. Thorndike]], and [[Robert S. Woodworth]], was often regarded as a second (after Chicago) "school" of American Functionalism (see, e.g., Heidbredder, 1933), although they never used that term themselves, because their research focused on the applied areas of mental testing, learning, and education. Dewey was elected president of the APA in 1899, while Titchener dropped his membership in the association. (In 1904, Titchener formed his own group, eventually known as the [[Society of Experimental Psychologists]].) [[Joseph Jastrow|Jastrow]] promoted the functionalist approach in his APA presidential address of 1900, and Angell adopted Titchener's label explicitly in his influential textbook of 1904 and his APA presidential address of 1906. In reality, Structuralism was, more or less, confined to Titchener and his students. Functionalism, broadly speaking, with its more practical emphasis on action and application, better suited the American cultural "style" and, perhaps more important, was more popular among university trustees and private funding agencies.
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[[Edward Bradford Titchener|Titchener]] responded in ''[[Philosophical Review]]'' (1898, 1899) by distinguishing his austere "structural" approach to psychology from what he termed the Chicago group's more applied "functional" approach, and thus began the first major theoretical rift in American psychology between [[Structuralism (psychology)|Structuralism]] and [[Functional psychology|Functionalism]]. The group at [[Columbia University|Columbia]], led by [[James McKeen Cattell]], [[Edward L. Thorndike]], and [[Robert S. Woodworth]], was often regarded as a second (after Chicago) "school" of American Functionalism (see, e.g., Heidbredder, 1933), although they never used that term themselves, because their research focused on the applied areas of mental testing, learning, and education. Dewey was elected president of the APA in 1899, while Titchener dropped his membership in the association. (In 1904, Titchener formed his own group, eventually known as the [[Society of Experimental Psychologists]].) [[Joseph Jastrow|Jastrow]] promoted the functionalist approach in his APA presidential address of 1900, and Angell adopted Titchener's label explicitly in his influential textbook of 1904 and his APA presidential address of 1906. In reality, Structuralism was, more or less, confined to Titchener and his students. (It was Titichener's former student [[E. G. Boring]], writing the most influential ''History of Experimental Psychology'' (1929/1950) textbook of the 20th century, who launched the common idea that the structuralism/functionalism debate was the primary fault line in American psychology at the turn of the 20th century.] Functionalism, broadly speaking, with its more practical emphasis on action and application, better suited the American cultural "style" and, perhaps more important, was more popular among university trustees and private funding agencies.
   
==Early French Psychology==
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==Early French psychology==
   
In no small measure because of the conservatism of the reign of [[Napoleon III|Louis Napoléon]] (president, 1848-1852; emperor as "Napoléon III," 1852-1870), academic philosophy in France through the middle part of the 19th century was controlled by members of the eclectic and spiritualist schools, led by figures such as [[Victor Cousin]] (1792-1867), [[Théodore Jouffroy]] (1796-1842), and [[Paul Janet]] (1823-1899). These were traditional metaphysical schools, opposed to regarding psychology as a natural science. With the ouster of Napoléon III after the débacle of the Franco-Prussian war, new paths, both political and intellectual, became possible. From the 1870 forward, a steadily increasing interest in [[positivism|positivist]], [[materialism|materialist]], [[evolution]]ary, and [[determinism|deterministic]] approaches to psychology developed, influenced by, among others, the work of [[Hyppolyte Taine]] (1828-1893) (e.g., ''De L'Intelligence'', 1870) and [[Théodule-Armand Ribot|Théodule Ribot]] (1839-1916) (e.g., ''La Psychologie Anglaise Contemporaine'', 1870).
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In no small measure because of the conservatism of the reign of [[Napoleon III|Louis Napoléon]] (president, 1848–1852; emperor as "Napoléon III", 1852–1870), academic philosophy in France through the middle part of the 19th century was controlled by members of the eclectic and spiritualist schools, led by figures such as [[Victor Cousin]] (1792–1867), [[Théodore Jouffroy]] (1796–1842), and [[Paul Janet]] (1823–1899). These were traditional metaphysical schools, opposed to regarding psychology as a natural science. With the ouster of Napoléon III after the débacle of the Franco-Prussian war, new paths, both political and intellectual, became possible. From the 1870 forward, a steadily increasing interest in [[positivism|positivist]], [[materialism|materialist]], [[evolution]]ary, and [[determinism|deterministic]] approaches to psychology developed, influenced by, among others, the work of [[Hyppolyte Taine]] (1828–1893) (e.g., ''De L'Intelligence'', 1870) and [[Théodule-Armand Ribot|Théodule Ribot]] (1839–1916) (e.g., ''La Psychologie Anglaise Contemporaine'', 1870).
   
In 1876, Ribot founded ''[[Revue Philosophique]]'' (the same year as ''[[Mind]]'' was founded in Britain), which for the next generation would be virtually the only French outlet for the "new" psychology (Plas, 1997). Although not a working experimentalist himself, Ribot's many books were to have profound influence on the next generation of psychologists. These included especially his ''L'Hérédité Psychologique'' (1873) and ''La Psychologie Allemande Contemporaine'' (1879). In the 1880s, Ribot's interests turned to psychopathology, writing books on disorders of memory (1881), will (1883), and personality (1885), and where he attempted to bring to these topics the insights of general psychology. Although in 1881 he lost a [[Sorbonne]] professorship in the History of Psychological Doctrines to traditionalist [[Jules Soury]] (1842-1915), from 1885 to 1889 he taught experimental psychology at the [[Sorbonne]]. In 1889 he was awarded a chair at the [[Collège de France]] in Experimental and Comparative Psychology, which he held until 1896 (Nicolas, 2002).
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In 1876, Ribot founded ''[[Revue Philosophique]]'' (the same year as ''[[Mind]]'' was founded in Britain), which for the next generation would be virtually the only French outlet for the "new" psychology (Plas, 1997). Although not a working experimentalist himself, Ribot's many books were to have profound influence on the next generation of psychologists. These included especially his ''L'Hérédité Psychologique'' (1873) and ''La Psychologie Allemande Contemporaine'' (1879). In the 1880s, Ribot's interests turned to psychopathology, writing books on disorders of memory (1881), will (1883), and personality (1885), and where he attempted to bring to these topics the insights of general psychology. Although in 1881 he lost a [[Sorbonne]] professorship in the History of Psychological Doctrines to traditionalist [[Jules Soury]] (1842–1915), from 1885 to 1889 he taught experimental psychology at the [[Sorbonne]]. In 1889 he was awarded a chair at the [[Collège de France]] in Experimental and Comparative Psychology, which he held until 1896 (Nicolas, 2002).
   
France's primary psychological strength lay in the field of psychopathology. The chief neurologist at the [[Salpêtrière]] Hospital in Paris, [[Jean-Martin Charcot]] (1825-1893), had been using the recently revivied and renamed (see above) practice of hypnoisis to "experimentally" produce hysterical symptoms in some of his patients. Two of his students, [[Alfred Binet]] (1857-1911) and [[Pierre Janet]] (1859-1947), adopted and expanded this practice in their own work.
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France's primary psychological strength lay in the field of psychopathology. The chief neurologist at the [[Salpêtrière]] Hospital in Paris, [[Jean-Martin Charcot]] (1825–1893), had been using the recently revivied and renamed (see above) practice of hypnoisis to "experimentally" produce hysterical symptoms in some of his patients. Two of his students, [[Alfred Binet]] (1857–1911) and [[Pierre Janet]] (1859–1947), adopted and expanded this practice in their own work.
   
In 1889, Binet and his colleague [[Henri Beaunis]] (1830-1921) co-founded, at the [[Sorbonne]], the first experimental psychology laboratory in France. Just five years later, in 1894, Beaunis, Binet, and a third colleague, [[Victor Henri]] (1872-1940), co-founded the first French journal dedicated to experimental psychology, ''[[L'Année Psychologique]]''. In the first years of the 20th century, Binet was requested by the French government to develop a method for the newly-founded universal public education system to identify students who would require extra assistance to master the standardized curriculum. In response, with his collaborator [[Théodore Simon]] (1873-1961), he developed the [[Binet-Simon]] Intelligence Test, first published in 1905 (revised in 1908 and 1911).
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In 1889, Binet and his colleague [[Henri Beaunis]] (1830–1921) co-founded, at the [[Sorbonne]], the first experimental psychology laboratory in France. Just five years later, in 1894, Beaunis, Binet, and a third colleague, [[Victor Henri]] (1872–1940), co-founded the first French journal dedicated to experimental psychology, ''[[L'Année Psychologique]]''. In the first years of the 20th century, Binet was requested by the French government to develop a method for the newly founded universal public education system to identify students who would require extra assistance to master the standardized curriculum. In response, with his collaborator [[Théodore Simon]] (1873–1961), he developed the [[Binet-Simon]] Intelligence Test, first published in 1905 (revised in 1908 and 1911).
Although the test was used to effect in France, it would find its greatest success (and controversy) in the United States, where it was translated in by [[Henry H. Goddard]] (1866-1957), the director of the Training School for the Feebleminded in Vineland, New Jersey, and his assistant, [[Elizabeth Kite]] (a translation of the 1905 edition appeared in the Vineland ''Bulletin'' in 1908, but much better known was Kite's 1916 translation of the 1908 edition, which appeared in book form). The translated test was used by Goddard to advance his [[eugenics]] agenda with respect to those he deemed congenitally feeble-minded, especially immigrants from non-Western European countries. Binet's test was revised by [[Stanford University|Stanford]] professor [[Lewis M. Terman]] (1877-1956) into the [[Stanford-Binet]] IQ test in 1916.
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Although the test was used to effect in France, it would find its greatest success (and controversy) in the United States, where it was translated in by [[Henry H. Goddard]] (1866–1957), the director of the Training School for the Feebleminded in Vineland, New Jersey, and his assistant, [[Elizabeth Kite]] (a translation of the 1905 edition appeared in the Vineland ''Bulletin'' in 1908, but much better known was Kite's 1916 translation of the 1908 edition, which appeared in book form). The translated test was used by Goddard to advance his [[eugenics]] agenda with respect to those he deemed congenitally feeble-minded, especially immigrants from non-Western European countries. Binet's test was revised by [[Stanford University|Stanford]] professor [[Lewis M. Terman]] (1877–1956) into the [[Stanford-Binet]] IQ test in 1916.
With Binet's death in 1911, the [[Sorbonne]] laboratory and ''[[L'Année Psychologique]]'' fell to [[Henri Piéron]] (1881-1964). Piéron's orientation was more physiological that Binet's had been.
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With Binet's death in 1911, the [[Sorbonne]] laboratory and ''[[L'Année Psychologique]]'' fell to [[Henri Piéron]] (1881–1964). Piéron's orientation was more physiological that Binet's had been.
 
[[Pierre Janet]] became the leading psychiatrist in France, being appointed to the [[Salpêtrière]] (1890-1894), [[the Sorbonne]] (1895-1920), and the [[Collège de France]] (1902-1936). In 1904, he co-founded the ''[[Journale de Psychologie Normale et Pathologique]]'' with fellow [[Sorbonne]] professor [[Georges Dumas]] (1866-1946), a student and faithful follower of Ribot. Whereas Janet's teacher, Charcot, had focused on the neurologial bases of hysteria, Janet was concerned to develop a scientific approach to psychopathology as a ''mental'' disorder. His theory that mental pathology results from conflict between unconscious and conscious parts of the mind, and that unconscious mental contents may emerge as symptoms with symbolic meanings led to a public priority dispute with [[Sigmund Freud]].
 
   
 
[[Pierre Janet]] became the leading psychiatrist in France, being appointed to the [[Salpêtrière]] (1890–1894), [[the Sorbonne]] (1895–1920), and the [[Collège de France]] (1902–1936). In 1904, he co-founded the ''[[Journale de Psychologie Normale et Pathologique]]'' with fellow [[Sorbonne]] professor [[Georges Dumas]] (1866–1946), a student and faithful follower of Ribot. Whereas Janet's teacher, Charcot, had focused on the neurologial bases of hysteria, Janet was concerned to develop a scientific approach to psychopathology as a ''mental'' disorder. His theory that mental pathology results from conflict between unconscious and conscious parts of the mind, and that unconscious mental contents may emerge as symptoms with symbolic meanings led to a public priority dispute with [[Sigmund Freud]].
==Early British Psychology==
 
   
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[[Paul Broca]] (1824–1880) who was a French surgeon, supported the work of the German physiologist, [[Johannes M&uuml;ller]] (1801–1858) whose work created the evolution of biology. What Broca did was, in 1861, he performed an autopsy on the brain of a man who had a stroke a few years ago prior to his death. The man lost his ability to speak after his stroke. The part of the brain was the cereberal cortex on the left side of the brain. Broca then said that that was the region that affected the ability to speak. [Heth, C. Donald;Carlson,Neil R, Psychology the science of behaviour, Canadian fourth edition, 2010]
Although the British had the first scholarly journal dedicated to the topic of psychology – ''[[Mind (journal)|Mind]]'', founded in 1876 by [[Alexander Bain]] and edited by [[George Croom Robertson]] – it was quite a long while before experimental psychology developed there to challenge the strong tradition of "mental philosophy." The experimental reports that appeared in ''Mind'' in the first two decades of its existence were almost entirely authored by Americans, especially [[G. Stanley Hall]] and his students (notably [[Henry Herbert Donaldson]]) and [[James McKeen Cattell]].
 
   
 
==Early British psychology==
[[Francis Galton]]'s (1822-1911) anthropometric laboratory opened in 1884. There people were tested on a wide variety of physical (e.g., strength of blow) and perceptual (e.g., visual acuity) attributes. In 1886 Galton was visited by [[James McKeen Cattell]] who would later adapt Galton's techniques in developing his own [[mental testing]] research program in the United States. Galton was not primarily a psychologist, however. The data he accumulated in the anthropometric laboratory primarily went toward supporting his case for [[eugenics]]. To help interpret the mounds of data he accumulated, Galton developed a number of important statistical techniques, including the precursors to the scatterplot and the [[product-moment correlation coefficient]] (later perfected by [[Karl Pearson]], 1857-1936).
 
   
 
Although the British had the first scholarly journal dedicated to the topic of psychology – ''[[Mind (journal)|Mind]]'', founded in 1876 by [[Alexander Bain]] and edited by [[George Croom Robertson]] – it was quite a long while before experimental psychology developed there to challenge the strong tradition of "mental philosophy." The experimental reports that appeared in ''Mind'' in the first two decades of its existence were almost entirely authored by Americans, especially [[G. Stanley Hall]] and his students (notably [[Henry Herbert Donaldson]]) and [[James McKeen Cattell]].
Soon after, [[Charles Spearman]] (1863-1945) developed the correlation-based statistical procedure of [[factor analysis]] in the process of building a case for his two-factor theory of intelligence, published in 1901. Spearman believed that people have an inborn level of [[general intelligence]] or ''g'' which can be crystallized into a specific skill in any of a number of narrow content area (''s'', or specific intelligence).
 
   
 
[[Francis Galton]]'s (1822–1911) [[anthropometry|anthropometric]] laboratory opened in 1884. There people were tested on a wide variety of physical (e.g., strength of blow) and perceptual (e.g., visual acuity) attributes. In 1886 Galton was visited by [[James McKeen Cattell]] who would later adapt Galton's techniques in developing his own [[mental testing]] research program in the United States. Galton was not primarily a psychologist, however. The data he accumulated in the anthropometric laboratory primarily went toward supporting his case for [[eugenics]]. To help interpret the mounds of data he accumulated, Galton developed a number of important statistical techniques, including the precursors to the scatterplot and the [[product-moment correlation coefficient]] (later perfected by [[Karl Pearson]], 1857–1936).
Laboratory psychology of the kind practiced in Germany and the United States was slow in coming to Britain. Although the philosopher [[James Ward (psychologist)|James Ward]] (1843-1925) urged [[Cambridge University]] to establish a psychophysics laboratory from the mid-1870s forward, it was not until the 1891 that they put so much as £50 toward some basic apparatus (Bartlett, 1937). A laboratory was established through the assistance of the physiology department in 1897 and a lectureship in psychology was established which first went to [[William Halse Rivers Rivers|W. H. R. Rivers]] (1864-1922). Soon Rivers was joined by [[Charles Saumel Myers|C. S. Myers]] (1873-1946) and [[William McDougall (psychologist)|William McDougall]] (1871-1938). This group showed as much interest in anthropology as psychology, going with [[Alfred Cort Haddon]] (1855-1940) on the famed [[Torres Straits]] expedition of 1898.
 
  +
 
Soon after, [[Charles Spearman]] (1863–1945) developed the correlation-based statistical procedure of [[factor analysis]] in the process of building a case for his two-factor theory of intelligence, published in 1901. Spearman believed that people have an inborn level of [[general intelligence]] or ''g'' which can be crystallized into a specific skill in any of a number of narrow content area (''s'', or specific intelligence).
  +
 
Laboratory psychology of the kind practiced in Germany and the United States was slow in coming to Britain. Although the philosopher [[James Ward (psychologist)|James Ward]] (1843–1925) urged [[Cambridge University]] to establish a psychophysics laboratory from the mid-1870s forward, it was not until the 1891 that they put so much as £50 toward some basic apparatus (Bartlett, 1937). A laboratory was established through the assistance of the physiology department in 1897 and a lectureship in psychology was established which first went to [[William Halse Rivers Rivers|W. H. R. Rivers]] (1864–1922). Soon Rivers was joined by [[Charles Samuel Myers|C. S. Myers]] (1873–1946) and [[William McDougall (psychologist)|William McDougall]] (1871–1938). This group showed as much interest in anthropology as psychology, going with [[Alfred Cort Haddon]] (1855–1940) on the famed [[Torres Straits]] expedition of 1898.
   
 
In 1901 the Psychological Society was established (which renamed itself the [[British Psychological Society]] in 1906), and in 1904 Ward and Rivers co-founded the ''[[British Journal of Psychology]]''.
 
In 1901 the Psychological Society was established (which renamed itself the [[British Psychological Society]] in 1906), and in 1904 Ward and Rivers co-founded the ''[[British Journal of Psychology]]''.
   
==Second Generation German Psychology==
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==Second generation German psychology==
 
===Würzburg School===
 
===Würzburg School===
   
In 1896, one of [[Wundt]]'s former Leipzig laboratory assistants, [[Oswald Külpe]] (1862-1915), founded a new laboratory in [[University of Würzburg|Würzburg]]. Külpe soon surrounded himself with a number of younger psychologists, most notably [[Narziss Ach|Narziß Ach]] (1871-1946), [[Karl Bühler]] (1879-1963), [[Ernst Dürr]] (1878-1913), [[Karl Marbe]] (1869-1953), and [[Henry Jackson Watt]] (1879-1925). Collectively, they developed a new approach to psychological experimentation that flew in the face of many of Wundt's restrictions. Wundt had drawn a distinction between the old philosophical style of self-observation (''Selbstbeobachtung'') in which one introspected for extended durations on higher thought processes and inner-perception (''innere Wahrnehmung'') in which one could be immediately aware of a momentary sensation, feeling, or image (''Vorstellung''). The former was declared to be impossible by Wundt, who argued that higher thought could not be studied experimentally through extended introspection, but only humanistically through ''[[Völkerpsychologie]]'' (folk psychology). Only the latter was a proper subject for experimentation.
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In 1896, one of [[Wundt]]'s former Leipzig laboratory assistants, [[Oswald Külpe]] (1862–1915), founded a new laboratory in [[University of Würzburg|Würzburg]]. Külpe soon surrounded himself with a number of younger psychologists, most notably [[Narziss Ach|Narziß Ach]] (1871–1946), [[Karl Bühler]] (1879–1963), [[Ernst Dürr]] (1878–1913), [[Karl Marbe]] (1869–1953), and [[Henry Jackson Watt]] (1879–1925). Collectively, they developed a new approach to psychological experimentation that flew in the face of many of Wundt's restrictions. Wundt had drawn a distinction between the old philosophical style of self-observation (''Selbstbeobachtung'') in which one introspected for extended durations on higher thought processes and inner-perception (''innere Wahrnehmung'') in which one could be immediately aware of a momentary sensation, feeling, or image (''Vorstellung''). The former was declared to be impossible by Wundt, who argued that higher thought could not be studied experimentally through extended introspection, but only humanistically through ''[[Völkerpsychologie]]'' (folk psychology). Only the latter was a proper subject for experimentation.
   
The Würzburgers, by contrast, designed experiments in which the experimental subject was presented with a complex stimulus (e.g., a Nietzschean aphorism or a logical problem) and after processing it for a time (e.g., interpreting the aphorism or solving the problem), retrospectively reported to the experimenter all that had passed through his consciousness during the interval. In the process, the Würzburgers claimed to have discovered a number of new elements of consciousness (over and above Wundt's sensations, feelings, and images) including ''Bewußtseinslagen'' (conscious sets), ''Bewußtheiten'' (awarenesses), and ''Gedanken'' (thoughts). In the English-language literature, these are often collectively termed "imageless thoughts," and the debate between Wundt and the Würzburgers as the "imageless thought controversy."
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The Würzburgers, by contrast, designed experiments in which the experimental subject was presented with a complex stimulus (e.g., a Nietzschean aphorism or a logical problem) and after processing it for a time (e.g., interpreting the aphorism or solving the problem), retrospectively reported to the experimenter all that had passed through his consciousness during the interval. In the process, the Würzburgers claimed to have discovered a number of new elements of consciousness (over and above Wundt's sensations, feelings, and images) including ''Bewußtseinslagen'' (conscious sets), ''Bewußtheiten'' (awarenesses), and ''Gedanken'' (thoughts). In the English-language literature, these are often collectively termed "imageless thoughts", and the debate between Wundt and the Würzburgers as the "imageless thought controversy."
   
Wundt referred to the Würzburgers' studies as "sham" experiments and criticized them vigorously. Wundt's most significant English student, [[Edward Bradford Titchener]], then working at [[Cornell University|Cornell]], intervened in the dispute, claiming to have conducted extended introspective studies in which he was able to resolve the Würzburgers imageless thoughts into sensations, feelings, and images. He thus, paradoxically, used a method of which Wundt did not approve in order to affirm Wundt's view of the situation (see Kusch, 1995; Kroker, 2003).
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Wundt referred to the Würzburgers' studies as "sham" experiments and criticized them vigorously. Wundt's most significant English student, [[Edward Bradford Titchener]], then working at [[Cornell University|Cornell]], intervened in the dispute, claiming to have conducted extended introspective studies in which he was able to resolve the Würzburgers imageless thoughts into sensations, feelings, and images. He thus, paradoxically, used a method of which Wundt did not approve in order to affirm Wundt's view of the situation.<ref>see Kusch, 1995; Kroker, 2003</ref>
   
The imageless thought debate is often said to have been instrumental in undermining the legitimacy of all introspective methods in experimental psychology and, ultimately, in bringing about the behaviorist revolution in American psychology. It was not without its own delayed legacy, however. [[Herbert Simon]] (1981) cites the work of one Würzburg psychologist in particular, [[Otto Selz]] (1881-1943), for having inspired him to develop his famous problem-solving computer algorithms (e.g., [[Logic Theorist]] and [[General Problem Solver]]) and his "thinking out loud" method for [[protocol analysis]]. In addition, [[Karl Popper]] studied psychology under Bühler and Selz, and appears to have brought some of their influence, unattributed, to his philosophy of science (Ter Hark, 2004).
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The imageless thought debate is often said to have been instrumental in undermining the legitimacy of all introspective methods in experimental psychology and, ultimately, in bringing about the behaviorist revolution in American psychology. It was not without its own delayed legacy, however. [[Herbert A. Simon]] (1981) cites the work of one Würzburg psychologist in particular, [[Otto Selz]] (1881–1943), for having inspired him to develop his famous problem-solving computer algorithms (e.g., [[Logic Theorist]] and [[General Problem Solver]]) and his "thinking out loud" method for [[protocol analysis]]. In addition, [[Karl Popper]] studied psychology under Bühler and Selz, and appears to have brought some of their influence, unattributed, to his philosophy of science.<ref>Ter Hark, 2004</ref>
   
===Gestalt Psychology===
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===Gestalt psychology===
 
Whereas the Würzburgers debated with Wundt mainly on matters of method, another German movement, centered in Berlin, took issue with the widespread assumption that the aim of psychology should be to break consciousness down into putative basic elements. Instead, they argued that the psychological "whole" has priority and that the "parts" are defined by the structure of the whole, rather than vice versa. Thus, the school was named ''[[Gestalt psychology|Gestalt]]'', a German term meaning approximately "form" or "configuration." It was led by [[Max Wertheimer]] (1880–1943), [[Wolfgang Köhler]] (1887–1967), and [[Kurt Koffka]] (1886–1941). Wertheimer had been a student of Austrian philosopher, [[Christian von Ehrenfels]] (1859–1932), who claimed that in addition to the sensory elements of a perceived object, there is an extra element which, though in some sense derived from the organization of the standard sensory elements, is also to be regarded as being an element in its own right. He called this extra element ''Gestalt-qualität'' or "form-quality." For instance, when one hears a melody, one hears the notes plus something in addition to them which binds them together into a tune – the ''Gestalt-qualität''. It is the presence of this ''Gestalt-qualität'' which, according to Von Ehrenfels, allows a tune to be transposed to a new key, using completely different notes, but still retain its identity. Wertheimer took the more radical line that "what is given me by the melody does not arise ... as a secondary process from the sum of the pieces as such. Instead, what takes place in each single part already depends upon what the whole is", (1925/1938). In other words, one hears the melody first and only then may perceptually divide it up into notes. Similarly in vision, one sees the form of the circle first – it is given "im-mediately" (i.e. its apprehension is not mediated by a process of part-summation). Only after this primary apprehension might one notice that it is made up of lines or dots or stars.
(This section adapted from Green, 2000, by permission of the author.)
 
   
 
''Gestalt-Theorie'' was officially initiated in 1912 in an article by Wertheimer on the phi-phenomenon; a perceptual illusion in which two stationary but alternately flashing lights appear to be a single light moving from one location to another. Contrary to popular opinion, his primary target was not behaviorism, as it was not yet a force in psychology. The aim of his criticism was, rather, the atomistic psychologies of Hermann von Helmholtz (1821–1894), Wilhelm Wundt (1832–1920), and other European psychologists of the time.
Whereas the Würzburgers debated with Wundt mainly on matters of method, another German movement, centered in Berlin, took issue with the widespread assumption that the aim of psychology should be to break consciousness down into putative basic elements. Instead, they argued that the psychological "whole" has priority and that the "parts" are defined by the structure of the whole, rather than vice versa. Thus, the school was named ''[[Gestalt psychology|Gestalt]]'', a German term meaning approximately "form" or "configuration." It was led by [[Max Wertheimer]] (1880-1943), [[Wolfgang Köhler]] (1887-1967), and [[Kurt Koffka]] (1886-1941). Wertheimer had been a student of Austrian philosopher, [[Christian von Ehrenfels]] (1859-1932), who claimed that in addition to the sensory elements of a perceived object, there is an extra element which, though in some sense derived from the organization of the standard sensory elements, is also to be regarded as being an element in its own right. He called this extra element ''Gestalt-qualität'' or "form-quality." For instance, when one hears a melody, one hears the notes plus something in addition to them which binds them together into a tune – the ''Gestalt-qualität''. It is the presence of this ''Gestalt-qualität'' which, according to Von Ehrenfels, allows a tune to be transposed to a new key, using completely different notes, but still retain its identity. Wertheimer took the more radical line that "what is given me by the melody does not arise ... as a secondary process from the sum of the pieces as such. Instead, what takes place in each single part already depends upon what the whole is," (1925/1938). In other words, one hears the melody first and only then may perceptually divide it up into notes. Similarly in vision, one sees the form of the circle first – it is given "im-mediately" (i.e. its apprehension is not mediated by a process of part-summation). Only after this primary apprehension might one notice that it is made up of lines or dots or stars.
 
   
 
The two men who served as Wertheimer's subjects in the phi experiment were Köhler and Koffka. Köhler was an expert in physical acoustics, having studied under physicist [[Max Planck]] (1858–1947), but had taken his degree in psychology under [[Carl Stumpf]] (1848–1936). Koffka was also a student of Stumpf's, having studied movement phenomena and psychological aspects of rhythm. In 1917 Köhler (1917/1925) published the results of four years of research on learning in chimpanzees. Köhler showed, contrary to the claims of most other learning theorists, that animals can learn by "sudden insight" into the "structure" of a problem, over and above the associative and incremental manner of learning that [[Ivan Pavlov]] (1849–1936) and [[Edward Lee Thorndike]] (1874–1949) had demonstrated with dogs and cats, respectively.
''Gestalt-Theorie'' was officially initiated in 1912 in an article by Wertheimer on the phi-phenomenon; a perceptual illusion in which two stationary but alternately flashing lights appear to be a single light moving from one location to another. Contrary to popular opinion, his primary target was not behaviorism, as it was not yet a force in psychology. The aim of his criticism was, rather, the atomistic psychologies of Hermann von Helmholtz (1821-1894), Wilhelm Wundt (1832-1920), and other European psychologists of the time.
 
 
The two men who served as Wertheimer's subjects in the phi experiment were Köhler and Koffka. Köhler was an expert in physical acoustics, having studied under physicist [[Max Planck]] (1858-1947), but had taken his degree in psychology under [[Carl Stumpf]] (1848-1936). Koffka was also a student of Stumpf's, having studied movement phenomena and psychological aspects of rhythm. In 1917 Köhler (1917/1925) published the results of four years of research on learning in chimpanzees. Köhler showed, contrary to the claims of most other learning theorists, that animals can learn by "sudden insight" into the "structure" of a problem, over and above the associative and incremental manner of learning that [[Ivan Pavlov]] (1849-1936) and [[Edward Lee Thorndike]] (1874-1949) had demonstrated with dogs and cats, respectively.
 
   
 
The terms "structure" and "organization" were focal for the Gestalt psychologists. Stimuli were said to have a certain structure, to be organized in a certain way, and that it is to this structural organization, rather than to individual sensory elements, that the organism responds. When an animal is conditioned, it does not simply respond to the absolute properties of a stimulus, but to its properties relative to its surroundings. To use a favorite example of Köhler's, if conditioned to respond in a certain way to the lighter of two gray cards, the animal generalizes the relation between the two stimuli rather than the absolute properties of the conditioned stimulus: it will respond to the lighter of two cards in subsequent trials even if the darker card in the test trial is of the same intensity as the lighter one in the original training trials.
 
The terms "structure" and "organization" were focal for the Gestalt psychologists. Stimuli were said to have a certain structure, to be organized in a certain way, and that it is to this structural organization, rather than to individual sensory elements, that the organism responds. When an animal is conditioned, it does not simply respond to the absolute properties of a stimulus, but to its properties relative to its surroundings. To use a favorite example of Köhler's, if conditioned to respond in a certain way to the lighter of two gray cards, the animal generalizes the relation between the two stimuli rather than the absolute properties of the conditioned stimulus: it will respond to the lighter of two cards in subsequent trials even if the darker card in the test trial is of the same intensity as the lighter one in the original training trials.
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In 1921 Koffka published a Gestalt-oriented text on developmental psychology, ''Growth of the Mind''. With the help of American psychologist [[Robert Ogden]], Koffka introduced the Gestalt point of view to an American audience in 1922 by way of a paper in ''[[Psychological Bulletin]]''. It contains criticisms of then-current explanations of a number of problems of perception, and the alternatives offered by the Gestalt school. Koffka moved to the United States in 1924, eventually settling at [[Smith College]] in 1927. In 1935 Koffka published his ''Principles of Gestalt Psychology''. This textbook laid out the ''Gestalt'' vision of the scientific enterprise as a whole. Science, he said, is not the simple accumulation of facts. What makes research scientific is the incorporation of facts into a theoretical structure. The goal of the ''Gestalt''ists was to integrate the facts of inanimate nature, life, and mind into a single scientific structure. This meant that science would have swallow not only what Koffka called the quantitative facts of physical science but the facts of two other "scientific categories": questions of order and questions of ''Sinn'', a German word which has been variously translated as significance, value, and meaning. Without incorporating the meaning of experience and behavior, Koffka believed that science would doom itself to trivialities in its investigation of human beings.
 
In 1921 Koffka published a Gestalt-oriented text on developmental psychology, ''Growth of the Mind''. With the help of American psychologist [[Robert Ogden]], Koffka introduced the Gestalt point of view to an American audience in 1922 by way of a paper in ''[[Psychological Bulletin]]''. It contains criticisms of then-current explanations of a number of problems of perception, and the alternatives offered by the Gestalt school. Koffka moved to the United States in 1924, eventually settling at [[Smith College]] in 1927. In 1935 Koffka published his ''Principles of Gestalt Psychology''. This textbook laid out the ''Gestalt'' vision of the scientific enterprise as a whole. Science, he said, is not the simple accumulation of facts. What makes research scientific is the incorporation of facts into a theoretical structure. The goal of the ''Gestalt''ists was to integrate the facts of inanimate nature, life, and mind into a single scientific structure. This meant that science would have swallow not only what Koffka called the quantitative facts of physical science but the facts of two other "scientific categories": questions of order and questions of ''Sinn'', a German word which has been variously translated as significance, value, and meaning. Without incorporating the meaning of experience and behavior, Koffka believed that science would doom itself to trivialities in its investigation of human beings.
   
Having survived the onslaught of the Nazis up to the mid-1930s (see Henle, 1978), all the core members of the Gestalt movement were forced out of Germany to the United States by 1935 (Henle, 1984). Köhler published another book, ''Dynamics in Psychology'', in 1940 but thereafter the ''Gestalt'' movement suffered a series of setbacks. Koffka died in 1941 and Wertheimer in 1943. Wertheimer's long-awaited book on mathematical problem-solving, ''Productive Thinking'' was published posthumously in 1945 but Köhler was now left to guide the movement without his two long-time colleagues. (For more on the history of ''Gestalt'' psychology, see Ash, 1995.)
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Having survived the onslaught of the Nazis up to the mid-1930s,<ref>see Henle, 1978</ref> all the core members of the Gestalt movement were forced out of Germany to the United States by 1935.<ref>Henle, 1984</ref> Köhler published another book, ''Dynamics in Psychology'', in 1940 but thereafter the ''Gestalt'' movement suffered a series of setbacks. Koffka died in 1941 and Wertheimer in 1943. Wertheimer's long-awaited book on mathematical problem-solving, ''Productive Thinking'' was published posthumously in 1945 but Köhler was now left to guide the movement without his two long-time colleagues.<ref>For more on the history of ''Gestalt'' psychology, see Ash, 1995</ref>
   
==The Emergence of Behaviorism in America==
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==Emergence of behaviorism in America==
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{{Main|Behaviorism}}
   
As a result of the conjunction of a number of events in the early 20th century, behaviorism gradually emerged as the dominant school in American psychology. First among these was the increasing skepticism with which many viewed the concept of consciousness: although still considered to be the essential element separating psychology from physiology, its subjective nature and the unreliable introspective method it seemed to require, troubled many. [[William James]]' 1904 ''Journal of Philosophy...'' article "Does Consciousness Exist?", laid out the worries explicitly.
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As a result of the conjunction of a number of events in the early 20th century, behaviorism gradually emerged as the dominant school in American psychology. First among these was the increasing skepticism with which many viewed the concept of consciousness: although still considered to be the essential element separating psychology from physiology, its subjective nature and the unreliable introspective method it seemed to require, troubled many. [[William James]]' 1904 ''Journal of Philosophy...'' article "Does Consciousness Exist?", laid out the worries explicitly.
   
Second was the gradual rise of a rigorous animal psychology. In addition to [[Edward Lee Thorndike]]'s work with cats in puzzle boxes in 1898, the start of research in which rats learn to navigate mazes was begun by [[Willard Small]] (1900, 1901 in ''American Journal of Psychology''). [[Robert M. Yerkes]]'s 1905 ''Journal of Philosophy...'' article "Animal Psychology and the Criteria of the Psychic" raised the general question of when one is entitled to attribute consciousness to an organism. The following few years saw the emergence of [[John Broadus Watson]] (1878-1959) as a major player, publishing his dissertation on the relation between neurological development and learning in the white rat (1907, ''Psychological Review Monograph Supplement''; Carr & Watson, 1908, ''J. Comparative Neurology & Psychology''). Another important rat study was published by [[Henry H. Donaldson]] (1908, ''J. Comparative Neurology & Psychology''). The year 1909 saw the first English-language account of [[Ivan Pavlov]]'s studies of conditioning in dogs (Yerkes & Morgulis, 1909, ''Psychological Bulletin'').
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Second was the gradual rise of a rigorous animal psychology. In addition to [[Edward Lee Thorndike]]'s work with cats in puzzle boxes in 1898, the start of research in which rats learn to navigate mazes was begun by [[Willard Small]] (1900, 1901 in ''American Journal of Psychology''). [[Robert M. Yerkes]]'s 1905 ''Journal of Philosophy...'' article "Animal Psychology and the Criteria of the Psychic" raised the general question of when one is entitled to attribute consciousness to an organism. The following few years saw the emergence of [[John Broadus Watson]] (1878–1959) as a major player, publishing his dissertation on the relation between neurological development and learning in the white rat (1907, ''Psychological Review Monograph Supplement''; Carr & Watson, 1908, ''J. Comparative Neurology & Psychology''). Another important rat study was published by [[Henry H. Donaldson]] (1908, ''J. Comparative Neurology & Psychology''). The year 1909 saw the first English-language account of [[Ivan Pavlov]]'s studies of conditioning in dogs (Yerkes & Morgulis, 1909, ''Psychological Bulletin'').
   
 
A third factor was the rise of Watson to a position of significant power within the psychological community. In 1908, Watson was offered a junior position at Johns Hopkins by [[James Mark Baldwin]]. In addition to heading the Johns Hopkins department, Baldwin was the editor of the influential journals, ''[[Psychological Review]]'' and ''[[Psychological Bulletin]]''. Only months after Watson's arrival, Baldwin was forced to resign his professorship due to scandal. Watson was suddenly made head of the department and editor of Baldwin's journals. He resolved to use these powerful tools to revolutionize psychology in the image of his own research. In 1913 he published in ''Psychological Review'' the article that is often called the "manifesto" of the behaviorist movement, "Psychology as the Behaviorist Views It." There he argued that psychology "is a purely objective experimental branch of natural science", "introspection forms no essential part of its methods..." and "The behaviorist... recognizes no dividing line between man and brute". The following year, 1914, his first textbook, ''Behavior'' went to press. Although behaviorism took some time to be accepted as a comprehensive approach (see Samelson, 1981), (in no small part because of the intervention of World War I), by the 1920s Watson's revolution was well underway. The central tenet of early behaviorism was that psychology should be a science of behavior, not of the mind, and rejected internal mental states such as beliefs, desires, or goals. Watson himself, however, was forced out of Johns Hopkins by scandal in 1920. Although he continued to publish during the 1920s, he eventually moved on to a career in advertising (see Coon, 1994).
 
A third factor was the rise of Watson to a position of significant power within the psychological community. In 1908, Watson was offered a junior position at Johns Hopkins by [[James Mark Baldwin]]. In addition to heading the Johns Hopkins department, Baldwin was the editor of the influential journals, ''[[Psychological Review]]'' and ''[[Psychological Bulletin]]''. Only months after Watson's arrival, Baldwin was forced to resign his professorship due to scandal. Watson was suddenly made head of the department and editor of Baldwin's journals. He resolved to use these powerful tools to revolutionize psychology in the image of his own research. In 1913 he published in ''Psychological Review'' the article that is often called the "manifesto" of the behaviorist movement, "Psychology as the Behaviorist Views It." There he argued that psychology "is a purely objective experimental branch of natural science", "introspection forms no essential part of its methods..." and "The behaviorist... recognizes no dividing line between man and brute". The following year, 1914, his first textbook, ''Behavior'' went to press. Although behaviorism took some time to be accepted as a comprehensive approach (see Samelson, 1981), (in no small part because of the intervention of World War I), by the 1920s Watson's revolution was well underway. The central tenet of early behaviorism was that psychology should be a science of behavior, not of the mind, and rejected internal mental states such as beliefs, desires, or goals. Watson himself, however, was forced out of Johns Hopkins by scandal in 1920. Although he continued to publish during the 1920s, he eventually moved on to a career in advertising (see Coon, 1994).
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==Second generation francophone psychology==
 
==Second generation francophone psychology==
 
===Genevan School===
 
===Genevan School===
In 1918, [[Jean Piaget]] (1896-1980) turned away from his early training in [[Natural History]] and began post-doctoral work in [[psychoanalysis]] in Zurich. In 1919, he moved to Paris to work at the Binet-Simon Lab. However, Binet had died in 1911 and Simon lived and worked in Rouen. His supervision therefore came (indirectly) from [[Pierre Janet]], Binet's old rival and a professor at the [[College de France]].
+
In 1918, [[Jean Piaget]] (1896–1980) turned away from his early training in [[Natural History]] and began post-doctoral work in [[psychoanalysis]] in Zurich. In 1919, he moved to Paris to work at the Binet-Simon Lab. However, Binet had died in 1911 and Simon lived and worked in Rouen. His supervision therefore came (indirectly) from [[Pierre Janet]], Binet's old rival and a professor at the [[Collège de France]].
   
 
The job in Paris was relatively simple: to use the statistical techniques he had learned as a natural historian, studying molluscs, to standardize [[Cyril Burt]]'s intelligence test for use with French children. Yet without direct supervision, he soon found a remedy to this boring work: exploring why children made the mistakes they did. Applying his early training in psychoanalytic interviewing, Piaget began to intervene directly with the children: "Why did you do that?" (etc.) It was from this that the ideas formalized in his later [[stage theory]] first emerged.
 
The job in Paris was relatively simple: to use the statistical techniques he had learned as a natural historian, studying molluscs, to standardize [[Cyril Burt]]'s intelligence test for use with French children. Yet without direct supervision, he soon found a remedy to this boring work: exploring why children made the mistakes they did. Applying his early training in psychoanalytic interviewing, Piaget began to intervene directly with the children: "Why did you do that?" (etc.) It was from this that the ideas formalized in his later [[stage theory]] first emerged.
   
In 1921, Piaget moved to Geneva to work with [[Edouard Claparède]] at the [[Rousseau Institute]].
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In 1921, Piaget moved to Geneva to work with [[Édouard Claparède]] at the [[Rousseau Institute]].
   
 
In 1936, Piaget received his first honorary doctorate from Harvard.
 
In 1936, Piaget received his first honorary doctorate from Harvard.
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==Cognitivism==
 
==Cognitivism==
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{{Main|Cognitive Psychology|Cognitive Science}}
   
[[Noam Chomsky]]'s (1957) review of Skinner's book ''[[Verbal Behavior]]'' (that aimed to explain [[language acquisition]] in a behaviorist framework) is considered one of the major theoretical challenges to the type of radical behaviorism that Skinner taught. Chomsky showed that language could not be learned solely from the sort of operant conditioning that Skinner postulated. Chomsky's argument was that as people could produce an infinite variety of sentences unique in structure and meaning, and that these could not possibly be generated solely through experience of natural language. As an alternative, he concluded that there must be internal mental structures - states of mind of the sort that behaviorism rejected as illusory. Similarly, work by [[Albert Bandura]] showed that children could [[social learning theory|learn by social observation]], without any change in overt behaviour, and so must be accounted for by internal representations.
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[[Noam Chomsky]]'s (1957) review of Skinner's book ''[[Verbal Behavior]]'' (that aimed to explain [[language acquisition]] in a behaviorist framework) is considered one of the major theoretical challenges to the type of radical behaviorism that Skinner taught. Chomsky showed that language could not be learned solely from the sort of operant conditioning that Skinner postulated. Chomsky's argument was that people could produce an infinite variety of sentences unique in structure and meaning and that these could not possibly be generated solely through experience of natural language. As an alternative, he concluded that there must be internal mental structures - states of mind of the sort that behaviorism rejected as illusory. Similarly, work by [[Albert Bandura]] showed that children could [[social learning theory|learn by social observation]], without any change in overt behaviour, and so must be accounted for by internal representations.
   
 
The rise of computer technology also promoted the metaphor of mental function as [[information processing]]. This, combined with a scientific approach to studying the mind, as well as a belief in internal mental states, led to the rise of [[cognitivism (psychology)|cognitivism]] as the dominant model of the mind.
 
The rise of computer technology also promoted the metaphor of mental function as [[information processing]]. This, combined with a scientific approach to studying the mind, as well as a belief in internal mental states, led to the rise of [[cognitivism (psychology)|cognitivism]] as the dominant model of the mind.
   
Links between [[brain]] and [[nervous system]] function were also becoming common, partly due to the experimental work of people like [[Charles Sherrington]] and [[Donald Olding Hebb|Donald Hebb]], and partly due to studies of people with [[Acquired brain injury|brain injury]] (see [[cognitive neuropsychology]]). With the development of technologies for accurately measuring brain function, [[neuropsychology]] and [[cognitive neuroscience]] have become some of the most active areas in contemporary psychology.
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Links between [[brain]] and [[nervous system]] function were also becoming common, partly due to the experimental work of people like [[Charles Sherrington]] and [[Donald Olding Hebb|Donald Hebb]], and partly due to studies of people with [[Acquired brain injury|brain injury]] (see [[cognitive neuropsychology]]). With the development of technologies for accurately measuring brain function, [[neuropsychology]] and [[cognitive neuroscience]] have become some of the most active areas in contemporary psychology.
   
 
With the increasing involvement of other disciplines (such as [[philosophy]], [[computer science]], and [[neuroscience]]) in the quest to understand the mind, the umbrella discipline of [[cognitive science]] has been created as a means of focusing such efforts in a constructive way.
 
With the increasing involvement of other disciplines (such as [[philosophy]], [[computer science]], and [[neuroscience]]) in the quest to understand the mind, the umbrella discipline of [[cognitive science]] has been created as a means of focusing such efforts in a constructive way.
 
==Dissenting schools==
 
 
Not all psychologists, however, have been content to follow what they perceive as mechanical models of the mind and human nature.
 
 
[[Carl Jung]], a one-time follower and contemporary of Freud, was instrumental in introducing notions of spirituality into Freudian psychoanalysis (Freud had rejected religion as a mass delusion). The [[soul]] is explored [[Depth psychology|in-depth]] in the Neo-Jungian school of [[archetypal psychology]].
 
 
[[Alfred Adler]], after a brief association with Freud's discussion circle, left to form his own discipline, called Individual (indivisible) Psychology. His influence on contemporary psychology has been considerable, with many approaches borrowing fragments of his theory. A recent rebirth of his legacy, [[Classical Adlerian Psychology]], combines Adler's original theory of personality, style of psychotherapy, and philosophy of living, with Abraham Maslow's vision of optimal functioning.
 
 
[[Humanistic psychology]] emerged in the 1950s and has continued as a reaction to [[positivism|positivist]] and behaviorist approaches to the mind. It stresses a phenomenological view of human experience and seeks to understand human beings and their behavior by conducting [[qualitative psychological research|qualitative research]]. The humanistic approach has its roots in [[existentialism|existentialist]] and [[Phenomenology (philosophy)|phenomenological]] philosophy and many humanist psychologists completely reject a scientific approach, arguing that trying to turn human experience into measurements strips it of all meaning and relevance to lived existence.
 
 
Some of the founding theorists behind this school of thought are [[Abraham Maslow]], who formulated a [[Maslow's hierarchy of needs|hierarchy of human needs]]; [[Carl Rogers]], who created and developed client centred therapy; and [[Fritz Perls]], who helped create and develop [[Gestalt therapy]].
 
 
A further development of [[Humanistic psychology]] emerging in the 1970s was [[Transpersonal psychology]], which studies the [[Spirituality|spiritual]] dimension of humanity, looking at the possibilities for development beyond the normal ego-boundaries.
 
 
==Psychology & Alchemy==
 
 
The earliest recorded practices of [[alchemy]] come from Ancient China. These specifically take the form of [[Taoist]] writings that detail alchemical practices. The goal of this [[Chinese alchemy]] was to purify the Mind, Body, and Soul through medicine and knowledge of the body.<ref>Cooper. J.C. 1990, ''Chinese Alchemy: the Daoist Quest for Immortality''. Sterling Publishing Co. Inc. New York.</ref> Much like Western [[alchemy]] the goal of Chinese alchemy was to gain immortality through the consumption of particular elixirs. These practices would eventually evolve into a system of energy practices where the goal was to open the body up to [[Qi]] and balance the [[five elements (Chinese philosophy)]] within the body. The view that a person’s well-being was based on having their inner elements balanced would later be adopted by [[Hippocrates]] who would greatly influence the philosophy of [[Galen]] which would dominate Western psychological thought for centuries<ref>van der Eijk, P. ''Medicine and Philosophy in Classical Antiquity: Doctors and Philosophers on Nature, Soul, Health and Disease''. Cambridge University Press, 2005 ISBN 0521818001, 9780521818001</ref>.
 
 
The history of Western Alchemy allegedly begins in [[Egypt]] with the teachings of [[Hermes Trimegistus]]<ref>Three Initiates. ''The Kybalion''. Yogi Publication Society, 1940</ref>. Occult history states that Hermes was the greatest teacher of all-time and that he is the one that brought the gift of writing to Man. He is also believed to have ascended to godhood in the form of [[Thoth]] and would go on to be the Greek god [[Hermes]]. At the core of Hermes’ teachings was that the entire Universe was created by the Mind.<ref>Three Initiates. ''The Kybalion''. Yogi Publication Society, 1940</ref> This theory would eventually emerge in the philosophy of [[Plato]]<ref>Plato, Whitaker, K.A. ''Plato: Parmenides''. Focus Publishing, 1996.</ref>. Two other teachings credited to Hermes appear even earlier in the philosophy of [[Heraclitus]]<ref>Bakalis, N. ''Handbook of Greek Philosophy: From Thales to the Stoics: Analysis and Fragments''. Trafford Publishing, 2005</ref>. Both of these thinkers proposed that the world is in constant motion and that opposites are not separate entities, but the same thing in different degrees. Hermes took these ideas further and applied them to the Mind. He claimed that a person’s Mind was constantly changing between different degrees, but by exerting willpower one could stop this motion and eventually master it <ref>Three Initiates. ''The Kybalion''. Yogi Publication Society, 1940</ref>.
 
 
In Western history the most important of Hermes’ teachings were those regarding [[alchemy]]. It is claimed that Hermes not only gave writing to the Earth, but also the art of alchemy. The most basic teachings of which are said to have been given in the form of the [[Emerald Tablet]]. In the Western school of thought, alchemy was often portrayed with having the ultimate goal of creating the [[Philosopher’s Stone]]. A substance that allegedly able to turn any mineral into gold as well as create an elixir that granted immortality<ref>Cockren, A. ''Alchemy Rediscovered and Restored''. Forgotten Books, 2007</ref>. After the fall of the [[Roman Empire]] these claims would be investigated by the likes of [[Albertus Magnus]] and [[Thomas Aquinas]]. While Aquinas was not exactly an alchemist, it is through his study of alchemy that would allow him to lay down the groundwork for the [[scientific method]]<ref>Hollister, C.W. ''Medieval Europe: A Short History''. McGraw-Hill College, 1990</ref>.
 
 
After Magnus and Aquinas the first true alchemist of the Middle Ages was [[Roger Bacon]]. Bacon, a [[Franciscan]] believed that knowledge could come from authority, reasoning, and experience<ref>Hollister, C.W. ''Medieval Europe: A Short History''. McGraw-Hill College, 1990</ref>. It was his firm belief however that knowledge was only effective if it came through experience. It is also believed that Bacon is one of the main perpetuators of the Philosopher’s Stone story<ref>Edwardes, M. ''The Dark Side of History''. Stein and Day, 1977.</ref>.
 
 
At this point alchemy was widely accepted by the Church as a way to learn more about theology. It was believed that if a process could turn minerals into gold, then a similar process could be applied to Man to purify its mind, body, and soul. After the writings of [[William of Ockham]] alchemy began to fall into disfavor with the Church and the clergy was banned from studying it. This lead to a long period where most of the philosophy of alchemy was neglected and instead it became more [[occult]] in nature<ref>Edwardes, M. ''The Dark Side of History''. Stein and Day, 1977.</ref>.
 
 
Alchemy remained in this state until the Renaissance with the work of [[Paracelsus]]. Paracelsus believed that through observation and experimentation there was much to be learned about the human body. While accepting most of the neo-Platonic, Pythagorean, and Hermetical philosophies, Paracelsus rejected most of the magical writings that had been incorporated into alchemy. Through his research Paracelsus would go on to become the first major proponent for medicine. He believed that the human body grew sick because of an imbalance in chemicals and that balance was restored through various tinctures and elixirs<ref>Edwardes, M. ''The Dark Side of History''. Stein and Day, 1977.</ref>.
 
 
Following Paracelsus’ work alchemy quickly faded away in favor of modern scientific practices. While alchemy had helped create many of the principles science would follow it was discarded as an esoteric [[pseudoscience]]. Beginning in the 19th century and continuing throughout the 20th century alchemical writings would lose much of the jargon and esoterica that had shrouded them for centuries. The writings now reflected a more personal form of alchemy. The goal of alchemy was no longer to create the Philosopher’s Stone, but to transform one’s self into a perfect being. The belief was that one could change their Mind and by extension their Body and Soul through meditation and willpower<ref>Hauck, D.W. ''The Complete Idiot's Guide to Alchemy''. Alpha, 2008</ref>.
 
 
Carl Jung would pick up on this belief and apply it to psychology in 1944 with the release of his book [[Psychology and Alchemy]]. Jung argued that the symbols used by the alchemists of the Renaissance and Medieval Europe were not merely esoterica, but were in fact manifestations of the psyche. Jung would then go on to show how the Great Work of the alchemists was a symbol for the reintegration of the psyche in a person. This would lead Jung to conclude that spirituality was key in a person’s mental well being<ref>Jung, C.G. ''Psychology and Alchemy''. Routledge, 1980</ref>.
 
 
Following Jung’s research into alchemy it started gaining followers once more. One of the most important Hermeticists of the 20th century was [[Franz Bardon]]. Bardon wrote three books on his view of the Universe and how one could learn to actualize their true potential as well as contact with beings from different planes of existence. Of these books the foundation of his entire metaphysics is [[Initiation Into Hermetics]]. In this book Bardon takes the concept originally proposed by the Chinese and Hippocrates that the body is composed of elements and that these elements must be in harmony. More so than alchemists before him, Bardon placed a great emphasis on a person’s Will. He claimed that not only could one learn to control the flow of their thoughts through willpower, but they could eventually change their personality and the world around them using willpower alone<ref>Bardon, F. ''Initiation Into Hermetics'' Merkur Publishing Co., 2001</ref>.
 
 
Currently alchemy relies heavily on the writings that Jung laid down, while there are still a few that follow the older traditions. Within the field of psychology there are findings that have begun to mirror those claims of the alchemists of the early 20th century, including Bardon. Throughout most of the 20th century it was believed that physical objects could not be changed through willpower. This belief is changing with research done by [[Jeffrey M. Schwartz]]. In the late 80s and 90s Schwartz ran studies on patients suffering from [[OCD]] and found that by employing meditation and using great amounts of willpower these patients were able to change the way their brains were organized<ref>Schwartz, J.M., Begley, S. ''The Mind and The Brain: Neuroplasticity and the Power of Mental Force''. Herper Perennial, 2002</ref>.
 
 
 
==See also==
 
==See also==
 
*[[Applied psychology]]
 
*[[Applied psychology]]
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*[[Theories]]
 
*[[Theories]]
   
==Notes==
+
==References==
 
{{reflist}}
 
{{reflist}}
  +
==Further reading==
  +
==Key texts==
  +
===Books===
 
*American Psychological Association. ''Portraits of Pioneers in Psychology''. New York: APA and Ehrlbaum, 2000.
  +
*[[Barrs B.J. (1986). The Cognitive Revolution in Psychology. New York:Guildford
  +
*Boring, E.G. (1950). A History of Experimental psychology. New York:Appleton-Century-Crofts.
 
*Danziger, K. (1997). ''Naming the mind: How psychology found its language.'' London: Sage.
 
*Evans, R. B., Staudt Sexton, V., & Cadwallader, T. C. (Eds.) (1992). ''The American Psychological Association: A historical perspective''. Washington, DC: American Psychological Association.
 
*Everson, S. (Ed.)(1991). ''Companions to Ancient thought 2: Psychology.'' New York: Cambridge University Press.
 
*Fechner, G. T. (1860). ''Elemente der psychophysik''. Engelmann(?).
  +
*Gardner, H. _ The Minds New Science:A History of the Cognitive Revolution. New Yorl:Basic.1985)
 
*Winter, A. (1998). ''Mesmerized: Powers of mind in Victorian Briatin''. Chicago: University of Chicago Press.
   
 
* Wertheimer,Michael ''A Brief History of Psychology''. 4th edition. Fort Worth TX: Harcourt Brace, 2000.
==References==
 
 
*Zusne Leonard (1975), Names in the history of psychology. this contains biographical information on over 500 individuals who were judged by a panel of experts as having made significant contributions to the development of psychology.
   
  +
===Papers===
   
  +
==Additional material==
  +
===Books===
 
*Annas, J. E. (1992). ''Hellenistic philosophy of mind''. Berkeley, CA: University of California Press.
 
*Annas, J. E. (1992). ''Hellenistic philosophy of mind''. Berkeley, CA: University of California Press.
*American Psychological Association. ''Portraits of Pioneers in Psychology''. New York: APA and Ehrlbaum, 2000.
 
 
*Ash, M. G. (1995). ''Gestalt psychology in German culture, 1890-1967''. Cambridge, UK: Cambridge University Press.
 
*Ash, M. G. (1995). ''Gestalt psychology in German culture, 1890-1967''. Cambridge, UK: Cambridge University Press.
 
*Bakalis, N. (2005). ''Handbook of Greek Philosophy: From Thales to the Stoics: Analysis and Fragments''. Victoria, BC: Trafford Publishing.
 
*Bakalis, N. (2005). ''Handbook of Greek Philosophy: From Thales to the Stoics: Analysis and Fragments''. Victoria, BC: Trafford Publishing.
 
*Bardon, F. (2001). ''Initiation Into Hermetics''. Salt Lake City, UT: Merkur Publishing Co..
 
*Bardon, F. (2001). ''Initiation Into Hermetics''. Salt Lake City, UT: Merkur Publishing Co..
 
*Bartlett, F. C. (1937). Cambridge, England: 1887–1937. ''American Journal of Psychology, 50,'' 97–110.
 
*Bartlett, F. C. (1937). Cambridge, England: 1887–1937. ''American Journal of Psychology, 50,'' 97–110.
*Bringmann, W. G. & Tweney, R. D. (Eds.) (1980). ''Wundt studies''. Toronto: Hogrefe.
+
*Bringmann, W. G. & Tweney, R. D. (Eds.) (1980). ''Wundt studies''. Toronto: Hogrefe.
 
*Cadwallader, T. C. (1974). Charles S. Peirce (1839–1914). The first American experimental psychologist. ''Journal of the *History of the Behavioral Sciences, 10,'' 291–298.
 
*Cadwallader, T. C. (1974). Charles S. Peirce (1839–1914). The first American experimental psychologist. ''Journal of the *History of the Behavioral Sciences, 10,'' 291–298.
 
*Cockren, A. (2007). ''Alchemy Rediscovered and Restored''. New York, NY: Forgotten Books.
 
*Cockren, A. (2007). ''Alchemy Rediscovered and Restored''. New York, NY: Forgotten Books.
 
*Coon, Deborah J. (1994). 'Not a Creature of Reason': The Alleged Impact of Watsonian Behaviorism on Advertising in the 1920s. In J.T. Todd & E.K. Morris (Eds.), ''Modern Perspectives on John B. Watson and Classical Behaviorism''. New York: Greenwood.
 
*Coon, Deborah J. (1994). 'Not a Creature of Reason': The Alleged Impact of Watsonian Behaviorism on Advertising in the 1920s. In J.T. Todd & E.K. Morris (Eds.), ''Modern Perspectives on John B. Watson and Classical Behaviorism''. New York: Greenwood.
 
*Cooper, J. C. (1990). ''Chinese Alchemy: the Daoist Quest for Immortality''. New York, NY: Sterling Publishing Co. Inc..
 
*Cooper, J. C. (1990). ''Chinese Alchemy: the Daoist Quest for Immortality''. New York, NY: Sterling Publishing Co. Inc..
*Danziger, K. (1997). ''Naming the mind: How psychology found its language.'' London: Sage.
 
 
*Durrant, M. (Ed.) (1993). ''Aristotle's'' De Anima ''in focus''. London: Routledge.
 
*Durrant, M. (Ed.) (1993). ''Aristotle's'' De Anima ''in focus''. London: Routledge.
 
*Edgell, Beatrice & Symes, W. Legge (1906). The Wheatstone-Hipp Chronoscope. Its Adjustments, Accuracy, and Control. ''British Journal of Psychology, 2'', 58–88.
 
*Edgell, Beatrice & Symes, W. Legge (1906). The Wheatstone-Hipp Chronoscope. Its Adjustments, Accuracy, and Control. ''British Journal of Psychology, 2'', 58–88.
 
*Edwardes, M. (1977). ''The Dark Side of History''. New York, NY: Stein and Day.
 
*Edwardes, M. (1977). ''The Dark Side of History''. New York, NY: Stein and Day.
 
*Gree C. D. (2000). Introduction to: "Perception: An introduction to the Gestalt-Theorie"
*Evans, R. B., Staudt Sexton, V., & Cadwallader, T. C. (Eds.) (1992). ''The American Psychological Association: A historical perspective''. Washington, DC: American Psychological Association.
 
*Everson, S. (Ed.)(1991). ''Companions to Ancient thought 2: Psychology.'' New York: Cambridge University Press.
 
*Fechner, G. T. (1860). ''Elemente der psychophysik''. Engelmann(?).
 
*Green, C. D. (2000). Introduction to: "Perception: An introduction to the Gestalt-Theorie"
 
 
by Kurt Koffka (1922). ''Classics in the History of Psychology'' (http://psychclassics.yorku.ca/Koffka/Perception/intro.htm).
 
by Kurt Koffka (1922). ''Classics in the History of Psychology'' (http://psychclassics.yorku.ca/Koffka/Perception/intro.htm).
 
*Green, C. D. & Groff, P. R. (2003). ''Early psychological thought: Ancient accounts of mind and soul.'' Westport, CT: Praeger.
 
*Green, C. D. & Groff, P. R. (2003). ''Early psychological thought: Ancient accounts of mind and soul.'' Westport, CT: Praeger.
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*Henle, M. (1978). One man against the Nazis: Wolfgang Köhler. ''American Psychologist, 33'', 939–944.
 
*Henle, M. (1978). One man against the Nazis: Wolfgang Köhler. ''American Psychologist, 33'', 939–944.
 
*Henle, M. (1984). Robert M. Ogden and gestalt psychology in America. ''Journal of the History of the Behavioral Sciences, 20'', 9–19.
 
*Henle, M. (1984). Robert M. Ogden and gestalt psychology in America. ''Journal of the History of the Behavioral Sciences, 20'', 9–19.
*Hollister, C. W. & Bennett, J. (1990). ''Medieval Europe: A Short History''. New York, NY: McGraw-Hill College.
+
*Hollister, C. W. & Bennett, J. (1990). ''Medieval Europe: A Short History''. New York, NY: McGraw-Hill College.n,
 
*Jarzombek, M. (2000). ''The Psychologizing of Modernity'' Cambridge: Cambridge University Press.
 
*Jarzombek, M. (2000). ''The Psychologizing of Modernity'' Cambridge: Cambridge University Press.
 
*Jung, C. G. (1980). ''Psychology and Alchemy''. New York, NY: Routledge.
 
*Jung, C. G. (1980). ''Psychology and Alchemy''. New York, NY: Routledge.
Line 304: Line 273:
 
*Köhler, W. (1925). ''Mentality of apes'' (E. Winter, Trans.). London: Routledge & Kegan Paul. (Original work published 1917)
 
*Köhler, W. (1925). ''Mentality of apes'' (E. Winter, Trans.). London: Routledge & Kegan Paul. (Original work published 1917)
 
*Köhler, W. (1940). ''Dynamics in psychology''. New York: Liveright.
 
*Köhler, W. (1940). ''Dynamics in psychology''. New York: Liveright.
*Kroker, K. (2003). The progress of instrospection in America, 1896–1938. ''Studies in History and Philosophy of Biological and Biomedical Sciences, 34,'' 77–108.
 
*Krstic, K. (1964). Marko Marulic—The Author of the Term "Psychology." ''Acta Instituti Psychologici Universitatis Zagrabiensis'', no. 36, pp. 7–13. Reprinted at http://psychclassics.yorku.ca/Krstic/marulic.htm
 
*Kusch, M. (1995). Recluse, interlocutor, interrogator: Natural and social order in turn-of-the-century psychological research schools. ''Isis, 86,'' 419–439.
 
 
*Nicolas, S. (2002). ''Histoire de la psychologie française: Naissance d'une nouvelle science''. Paris: In Press.
 
*Nicolas, S. (2002). ''Histoire de la psychologie française: Naissance d'une nouvelle science''. Paris: In Press.
 
*Nussbaum, M. C. & Rorty, A. O. (Eds.) (1992). ''Essay on Aristotle's'' De Anima. Oxford: Clarendon Press.
 
*Nussbaum, M. C. & Rorty, A. O. (Eds.) (1992). ''Essay on Aristotle's'' De Anima. Oxford: Clarendon Press.
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*Plas, R. (1997). French psychology. In W. G. Bringmann, H. E. Lück, R. Miller, & C. E. Early (Eds.), ''A pictorial history of psychology'' (pp. 548–552). Chicago: Quintessence.
 
*Plas, R. (1997). French psychology. In W. G. Bringmann, H. E. Lück, R. Miller, & C. E. Early (Eds.), ''A pictorial history of psychology'' (pp. 548–552). Chicago: Quintessence.
 
*Plato, & Whitaker, K. A. (1996). ''Plato: Parmenides''. Newburyport, MA: Focus Publishing.
 
*Plato, & Whitaker, K. A. (1996). ''Plato: Parmenides''. Newburyport, MA: Focus Publishing.
*Rieber, R. W. & Robinson, D. K. (Eds.) (2001). ''Wilhelm Wundt in history: The making of a scientific psychology''. New York: Kluwer & Plenum.
+
*Rieber, R. W. & Robinson, D. K. (Eds.) (2001). ''Wilhelm Wundt in history: The making of a scientific psychology''. New York: Kluwer & Plenum.
 
*Robinson, T. M. (1995). ''Plato's psychology'' (2nd ed.). Toronto: University of Toronto Press.
 
*Robinson, T. M. (1995). ''Plato's psychology'' (2nd ed.). Toronto: University of Toronto Press.
 
*Schwartz, J. M. & Begley, S. (2002). ''The Mind and The Brain: Neuroplasticity and the Power of Mental Force''. New York, NY: Harper Perennial.
 
*Schwartz, J. M. & Begley, S. (2002). ''The Mind and The Brain: Neuroplasticity and the Power of Mental Force''. New York, NY: Harper Perennial.
 
*Shapin, S. (1975). Phrenological knowledge and the social structure of early nineteenth-century Edinburgh. ''Annals of Science, 32'', 219–243.
 
*Shapin, S. (1975). Phrenological knowledge and the social structure of early nineteenth-century Edinburgh. ''Annals of Science, 32'', 219–243.
*Simon, Herbert A. (1981) Otto Selz and information-processing psychology. In N. H. Frijda A. D. de Groot (Eds.), ''Otto Selz: His Contribution to Psychology, Mouton,'' The Hague.
+
*Simon, Herbert A. (1981) Otto Selz and information-processing psychology. In N. H. Frijda A. D. de Groot (Eds.), ''Otto Selz: His Contribution to Psychology, Mouton,'' The Hague.
 
*Sokal, M. M. (2001). Practical phrenology as psychological counseling in the 19th-century United States. In C. D. Green, M. Shore, & T. Teo (Eds.), ''The transformation of psychology: Influences of 19th-century philosophy, technology, and natural science'' (pp. 21–44). Washington D.C.: American Psychological Association.
 
*Sokal, M. M. (2001). Practical phrenology as psychological counseling in the 19th-century United States. In C. D. Green, M. Shore, & T. Teo (Eds.), ''The transformation of psychology: Influences of 19th-century philosophy, technology, and natural science'' (pp. 21–44). Washington D.C.: American Psychological Association.
 
* Ter Hark, Michel. (2004). ''Popper, Selz, and the rise of evolutionary epistemology.'' Cambridge, UK: Cambridge University Press.
 
* Ter Hark, Michel. (2004). ''Popper, Selz, and the rise of evolutionary epistemology.'' Cambridge, UK: Cambridge University Press.
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*Wertheimer, M. (1938). Gestalt theory. In W. D. Ellis (Ed. & Trans.), ''A source book of gestalt psychology'' (pp. 1–11). London: Routledge & Kegan Paul. (Original work published 1925)
 
*Wertheimer, M. (1938). Gestalt theory. In W. D. Ellis (Ed. & Trans.), ''A source book of gestalt psychology'' (pp. 1–11). London: Routledge & Kegan Paul. (Original work published 1925)
 
*Wertheimer, W. (1945). ''Productive thinking''. London: Tavistock.
 
*Wertheimer, W. (1945). ''Productive thinking''. London: Tavistock.
  +
* Wertheimer,Michael ''A Brief History of Psychology''. 4th edition. Fort Worth TX: Harcourt Brace, 2000.
 
  +
===Papers===
*Winter, A. (1998). ''Mesmerized: Powers of mind in Victorian Briatin''. Chicago: University of Chicago Press.
 
  +
*[http://scholar.google.com/scholar?sourceid=mozclient&num=50&scoring=d&ie=utf-8&oe=utf-8&q=abc history+psychology]
*Zusne Leonard (1975), Names in the history of psychology. this contains biographical information on over 500 individuals who were judged by a panel of experts as having made significant contributions to the development of psychology.
 
 
*Kroker, K. (2003). The progress of instrospection in America, 1896–1938. ''Studies in History and Philosophy of Biological and Biomedical Sciences, 34,'' 77–108.
 
*Krstic, K. (1964). Marko Marulic—The Author of the Term "Psychology." ''Acta Instituti Psychologici Universitatis Zagrabiensis'', no. 36, pp. 7–13. Reprinted at http://psychclassics.yorku.ca/Krstic/marulic.htm
 
*Kusch, M. (1995). Recluse, interlocutor, interrogator: Natural and social order in turn-of-the-century psychological research schools. ''Isis, 86,'' 419–439.
  +
===Dissertations===
  +
  +
   
 
==External links==
 
==External links==
Line 365: Line 337:
   
 
====Websites of Physical Archives====
 
====Websites of Physical Archives====
* [http://www3.uakron.edu/ahap/ The Archives of the History of American Psychology] - Large collection of documents and objects at the [[University of Akron]], directed by David Baker
+
* [http://www3.uakron.edu/ahap/ The Archives of the History of American Psychology] - Large collection of documents and objects at the [[University of Akron]], directed by David Baker
 
* [http://www.apa.org/archives/ Archives of the American Psychological Association] directed by Wade Pickren
 
* [http://www.apa.org/archives/ Archives of the American Psychological Association] directed by Wade Pickren
 
* [http://www.bps.org.uk/hopc/hopc_home.cfm/ History of Psychology Centre] - the British Psychological Society's archive collections
 
* [http://www.bps.org.uk/hopc/hopc_home.cfm/ History of Psychology Centre] - the British Psychological Society's archive collections
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Latest revision as of 16:05, 11 October 2012

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Psychology: Debates · Journals · Psychologists



This is a general article on the history of psychology. For a listing of the main area see: Specific areas of interest in the history of psychology

See also:Timeline of psychology

The history of psychology as a scholarly study of the mind and behavior dates back to the Ancient Greeks. There is also evidence of psychological thought in ancient Egypt. Psychology was a branch of philosophy until 1879, when psychology developed as an independent scientific discipline in Germany and the United States. Psychology borders on various other fields including physiology, neuroscience, artificial intelligence, sociology, anthropology, as well as philosophy and other components of the humanities.


Overview

Philosophical interest in the mind and behavior dates back to the ancient civilizations of Egypt, Greece, China and India. These earlier forms of inquiry began adopting a more clinical[1] and experimental[2] approach under medieval Greek and Muslim psychologists and physicians, whose practitioners built the first psychiatric hospitals.[3]

Psychology as a self-conscious field of experimental study began in 1879, when Wilhelm Wundt founded the first laboratory dedicated exclusively to psychological research in Leipzig. Other important early contributors to the field include Hermann Ebbinghaus (a pioneer in the study of memory), William James (the American father of pragmatism), and Ivan Pavlov (who developed the procedures associated with classical conditioning). Prior to this, questions that are now treated within psychology were subsumed within philosophy and it is only relatively recently that the relationship between psychology and philosophy has been redrawn[4].

Soon after the development of experimental psychology, various kinds of applied psychology appeared. G. Stanley Hall brought scientific pedagogy to the United States from Germany in the early 1880s. John Dewey's educational theory of the 1890s was another example. Also in the 1890s, Hugo Münsterberg began writing about the application of psychology to industry, law, and other fields. Lightner Witmer established the first psychological clinic in the 1890s. James McKeen Cattell adapted Francis Galton's anthropometric methods to generate the first program of mental testing in the 1890s. In Vienna, meanwhile, the psychiatrist Sigmund Freud developed an independent approach to the study of the mind called psychoanalysis, which has been widely influential.

The 20th century saw a reaction to Edward Titchener's critique of Wundt's empiricism. This contributed to the formulation of behaviorism by John B. Watson, which was popularized by B. F. Skinner. Behaviorism proposed limiting psychological study to that of overt behavior, because that could be quantified and easily measured. Behaviorists considered knowledge of the "mind" too metaphysical to achieve scientifically. The final decades of the 20th century saw the decline of behaviorism and the rise of cognitive science, an interdisciplinary approach to studying the human mind. Cognitive science again considers the "mind" as a subject for investigation, using the tools of evolutionary psychology, linguistics, computer science, philosophy, and neurobiology. This form of investigation has proposed that a wide understanding of the human mind is possible, and that such an understanding may be applied to other research domains, such as artificial intelligence.

Early psychological thought

Further information: Philosophy of mind

Many cultures throughout history have speculated on the nature of the mind, soul, spirit, etc. For instance, in Ancient Egypt, the Edwin Smith Papyrus contains an early description of the brain, and some speculations on its functions (though in a medical/surgical context). Though other medical documents of ancient times were full of incantations and applications meant to turn away disease-causing demons and other superstition, the Edwin Smith Papyrus gives remedies to almost 50 conditions and only 1 contains incantations to ward off evil. It has been praised as being similar to what is today considered common knowledge, but must be recognized as having originated in a very different context.

Ancient Greek philosophers, from Thales (fl. 550 bc) through even to the Roman period, developed an elaborate theory of what they termed the psuchẽ (from which the first half of "psychology" is derived), as well as other "psychological" terms – nous, thumos, logistikon, etc.[5] The most influential of these are the accounts of Plato (especially in the Republic),[6] Pythagoras and of Aristotle (esp. Peri Psyches, better known under its Latin title, De Anima).[7] Hellenistic philosophers (viz., the Stoics and Epicurians) diverged from the Classical Greek tradition in several important ways, especially in their concern with questions of the physiological basis of the mind.[8] The Roman physician Galen addressed these issues most elaborately and influentially of all. The Greek tradition influenced some Christian and Islamic thought on the topic.

In the Judeo-Christian tradition, the Manual of Discipline (from the Dead Sea Scrolls, ca. 21 BC–61 AD) notes the division of human nature into two temperaments.

In Asia, China had a long history of administering tests of ability as part of its education system. In the 6th century AD, Lin Xie carried out an early experiment, in which he asked people to draw a square with one hand and at the same time draw a circle with the other (ostensibly to test people's vulnerability to distraction). Some have claimed that this is the first psychology experiment, and, therefore, the beginnings of psychology as an experimental science.

India, too, had an elaborate theory of "the self" in its Vedanta philosophical writings.[9]

Medieval Muslim physicians also developed practices to treat patients suffering from a variety of "diseases of the mind".[10]

Ahmed ibn Sahl al-Balkhi (850–934) was among the first, in this tradition, to discuss disorders related to both the body and the mind, arguing that "if the nafs [psyche] gets sick, the body may also find no joy in life and may eventually develop a physical illness."[11] Al-Balkhi recognized that the body and the soul can be healthy or sick, or "balanced or imbalanced." He wrote that imbalance of the body can result in fever, headaches and other bodily illnesses, while imbalance of the soul can result in anger, anxiety, sadness and other nafs-related symptoms. He recognized two types of what we now call depression: one caused by known reasons such as loss or failure, which can be treated psychologically; and the other caused by unknown reasons possibly caused by physiological reasons, which can be treated through physical medicine.[11]

The scientist Ibn al-Haytham (Alhazen) carried out experiments in visual perception and the other senses, including variations in sensitivity, sensation of touch, perception of colors, perception of darkness, the psychological explanation of the moon illusion, and binocular vision.[2] Al-Biruni also employed such experimental methods in examining reaction time.[12]

Avicenna, similarly, did early work in the treatment of nafs-related illnesses, and developed a system for associating changes in the pulse rate with inner feelings. Avicenna also described phenomena we now recognize as neuropsychiatric conditions, including hallucination, insomnia, mania, nightmare, melancholia, dementia, epilepsy, paralysis, stroke, vertigo and tremor.[13]

Other medieval thinkers who discussed issues related to psychology included:

Ibn Zuhr (Avenzoar) described disorders similar to meningitis, intracranial thrombophlebitis, and mediastinal germ cell tumors; Averroes attributed photoreceptor properties to the retina; and Maimonides described rabies and belladonna intoxication.[17]

Witelo is considered a precursor of perception psychology. His Perspectiva contains much material in psychology, outlining views that are close to modern notions on the association of ideas and on the subconscious.

Beginnings of Western psychology

Many of the Ancients' writings would have been lost had it not been for the efforts of the Christian, Jewish and Persian translators in the House of Wisdom, the House of Knowledge, and other such institutions, whose glosses and commentaries were later translated into Latin in the 12th century. However, it is not clear how these sources first came to be used during the Renaissance, and their influence on what would later emerge as the discipline of psychology is a topic of scholarly debate.[20]

Etymology and early usage of word

The first use of the term "psychology" is often attributed to the German scholastic philosopher Rudolf Göckel (1547–1628, often known under the Latin form Rudolph Goclenius), who published the Psychologia hoc est de hominis perfectione, anima, ortu in Marburg in 1590. However, the term seems to have been used more than six decades earlier by the Croatian humanist Marko Marulić (1450–1524) in the title of his Latin treatise, Psichiologia de ratione animae humanae. Although the treatise itself has not been preserved, its title appears in a list of Marulic's works compiled by his younger contemporary, Franjo Bozicevic-Natalis in his "Vita Marci Maruli Spalatensis" (Krstić, 1964). This, of course, may well not have been the very first usage, but it is the earliest documented use at present.

The term did not come into popular usage until the German idealist philosopher, Christian Wolff (1679–1754) used it in his Psychologia empirica and Psychologia rationalis (1732–1734). This distinction between empirical and rational psychology was picked up in Denis Diderot's (1713–1780) Encyclopédie (1751–1784) and was popularized in France by Maine de Biran (1766–1824). In England, the term "psychology" overtook "mental philosophy" in the middle of the 19th century, especially in the work of William Hamilton (1788–1856) (see Danziger, 1997, chap. 3).

Enlightenment psychological thought

Early psychology was regarded as the study of the soul (in the Christian sense of the term).[21] The modern philosophical form of psychology was heavily influenced by the works of René Descartes (1596–1650), and the debates that he generated, of which the most relevant were the objections to his Meditations on First Philosophy (1641), published with the text. Also important to the later development of psychology were his Passions of the Soul (1649) and Treatise on Man (completed in 1632 but, along with the rest of The World, withheld from publication after Descartes heard of the Catholic Church's condemnation of Galileo; it was eventually published posthumously, in 1664).

Although not educated as a physician, Descartes did extensive anatomical studies of bulls' hearts and was considered important enough that William Harvey responded to him. Descartes was one of the first to endorse Harvey's model of the circulation of the blood, but disagreed with his metaphysical framework to explain it. Descartes dissected animals and human cadavers and as a result was familiar with the research on the flow of blood leading to the conclusion that the body is a complex device that is capable of moving without the soul, thus contradicting the "Doctrine of the Soul". The emergence of psychology as a medical discipline was given a major boost by Thomas Willis, not only in his reference to psychology (the "Doctrine of the Soul") in terms of brain function, but through his detailed 1672 anatomical work, and his treatise "De Anima Brutorum" ("Two Discourses on the Souls of Brutes"). However, Willis acknowledged the influence of Descartes's rival, Pierre Gassendi, as an inspiration for his work.

The philosophers of the British Empiricist and Associationist schools had a profound impact on the later course of experimental psychology. John Locke's An Essay Concerning Human Understanding (1689), George Berkeley's Treatise Concerning the Principles of Human Knowledge (1710), and David Hume's A Treatise of Human Nature (1739–1740) were particularly influential, as were David Hartley's Observations on Man (1749) and John Stuart Mill's A System of Logic. (1843). Also notable was the work of some Continental Rationalist philosophers, especially Baruch Spinoza's (1632–1677) On the Improvement of the Understanding (1662) and Gottfried Wilhelm Leibniz's (1646–1716) New Essays on Human Understanding (completed 1705, published 1765). Rauch, Frederick A. (1806–1841) Psychology, or a view of the human soul, including anthropology (1840).

The Danish philosopher Søren Kierkegaard also influenced the humanistic, existential, and modern psychological schools with his works The Concept of Anxiety (1844) and The Sickness Unto Death (1849).

Transition to contemporary psychology

Also influential on the emerging discipline of psychology were debates surrounding the efficacy of Mesmerism (a precursor to hypnosis) and the value of phrenology. The former was developed in the 1770s by Austrian physician Anton Mesmer (1734–1815) who claimed to use the power of gravity, and later of "animal magnetism", to cure various physical and mental ills. As Mesmer and his treatment became increasingly fashionable in both Vienna and Paris, it also began to come under the scrutiny of suspicious officials. In 1784, an investigation was commissioned in Paris by King Louis XVI which included American ambassador Benjamin Franklin, chemist Antoine Lavoisier and physician Joseph-Ignace Guillotin (later the popularizer of the guillotine). They concluded that Mesmer's method was useless. Abbé Faria, an Indo-Portuguese priest, revived public attention in animal magnetism. Unlike Mesmer, Faria claimed that the effect was 'generated from within the mind’ by the power of expectancy and cooperation of the patient. Although disputed, the "magnetic" tradition continued among Mesmer's students and others, resurfacing in England in the 19th century in the work of the physician John Elliotson (1791–1868), and the surgeons James Esdaile (1808–1859), and James Braid (1795–1860) (who reconceptualized it as property of the subject's mind rather than a "power" of the Mesmerist's, and relabeled it "hypnotism"). Mesmerism also continued to have a strong social (if not medical) following in England through the 19th century (see Winter, 1998). Faria's approach was significantly extended by the clinical and theoretical work of Ambroise-Auguste Liébeault and Hippolyte Bernheim of the Nancy School. Faria's theoretical position, and the subsequent experiences of those in the Nancy School made significant contributions to the later autosuggestion techniques of Émile Coué. It was adopted for the treatment of hysteria by the director of Paris's Salpêtrière Hospital, Jean-Martin Charcot (1825–1893).

Phrenology began as "organology", a theory of brain structure developed by the German physician, Franz Joseph Gall (1758–1828). Gall argued that the brain is divided into a large number of functional "organs", each responsible for particular human mental abilities and dispositions – hope, love, spirituality, greed, language, the abilities to detect the size, form, and color of objects, etc. He argued that the larger each of these organs are, the greater the power of the corresponding mental trait. Further, he argued that one could detect the sizes of the organs in a given individual by feeling the surface of that person's skull. Gall's ultra-localizationist position with respect to the brain was soon attacked, most notably by French anatomist Pierre Flourens (1794–1867), who conducted ablation studies (on chickens) which purported to demonstrate little or no cerebral localization of function. Although Gall had been a serious (if misguided) researcher, his theory was taken by his assistant, Johann Gaspar Spurzheim (1776–1832), and developed into the profitable, popular enterprise of phrenology, which soon spawned, especially in Britain, a thriving industry of independent practitioners. In the hands of Scottish religious leader George Combe (1788–1858) (whose book The Constitution of Man was one of the best-sellers of the century), phrenology became strongly associated with political reform movements and egalitarian principles (see, e.g., Shapin, 1975; but also see van Wyhe, 2004). Phrenology soon spread to America as well, where itinerant practical phrenologists assessed the mental well-being of willing customers (see Sokal, 2001).

Emergence of German experimental psychology

Until the middle of the 19th century, psychology was widely regarded as a branch of philosophy. For instance, Immanuel Kant (1724–1804) declared in his Metaphysical Foundations of Natural Science (1786) that psychology cannot be made into a "proper" science because its phenomena cannot be rendered in mathematical form, among other reasons. However, Kant proposed what looks to modern eyes very much like an empirical psychology in his Anthropology from a Pragmatic Point of View (1798).

Johann Friedrich Herbart (1776–1841) took issue with Kant's conclusion and attempted to develop a mathematical basis for a scientific psychology. Although he was unable to empirically realize the terms of his psychological theory, his efforts did lead scientists such as Ernst Heinrich Weber (1795–1878) and Gustav Theodor Fechner (1801–1887) to attempt to measure the mathematical relationships between the physical magnitudes of external stimuli and the psychological intensities of the resulting sensations. Fechner (1860) is the originator of the term psychophysics.

Meanwhile, individual differences in reaction time had become a critical issue in the field of astronomy, under the name of the "personal equation". Early researches by Friedrich Wilhelm Bessel (1784–1846) in Königsberg and Adolf Hirsch led to the development of a highly precise chronoscope by Mathias Hipp that, in turn, was based on a design by Charles Wheatstone for a device that measured the speed of artillery shells (Edgell & Symes, 1906). Other timing instruments were borrowed from physiology (e.g., the kymograph) and adapted for use by the Utrecht ophthalmologist Franciscus Donders (1818–1899) and his student Johan Jacob de Jaager in measuring the duration of simple mental decisions.

The 19th century was also the period in which physiology, including neurophysiology, professionalized and saw some of its most significant discoveries. Among its leaders were Charles Bell (1774–1843) and François Magendie (1783–1855) who independently discovered the distinction between sensory and motor nerves in the spinal column, Johannes Müller (1801–1855) who proposed the doctrine of specific nerve energies, Emil du Bois-Reymond (1818–1896) who studied the electrical basis of muscle contraction, Pierre Paul Broca (1824–1880) and Carl Wernicke (1848–1905) who identified areas of the brain responsible for different aspects of language, as well as Gustav Fritsch (1837–1927), Eduard Hitzig (1839–1907), and David Ferrier (1843–1924) who localized sensory and motor areas of the brain. One of the principal founders of experimental physiology, Hermann von Helmholtz (1821–1894), conducted studies of a wide range of topics that would later be of interest to psychologists – the speed of neural transmission, the natures of sound and color, and of our perceptions of them, etc. In the 1860s, while he held a position in Heidelberg, Helmholtz engaged as an assistant a young M.D. named Wilhelm Wundt. Wundt employed the equipment of the physiology laboratory – chronoscope, kymograph, and various peripheral devices – to address more complicated psychological questions than had, until then, been investigated experimentally. In particular he was interested in the nature of apperception – the point at which a perception occupies the central focus of conscious awareness.

In 1874 Wundt took up a professorship in Zürich, where he published his landmark textbook, Grundzüge der physiologischen Psychologie (Principles of Physiological Psychology, 1874). Moving to a more prestigious professorship in Leipzig in 1875, Wundt founded a laboratory specifically dedicated to original research in experimental psychology in 1879, the first laboratory of its kind in the world. In 1883, he launched a journal in which to publish the results of his, and his students', research, Philosophische Studien (Philosophical Studies) (For more on Wundt, see, e.g., Bringmann & Tweney, 1980; Rieber & Robinson, 2001). Wundt attracted a large number of students not only from Germany, but also from abroad. Among his most influential American students were G. Stanley Hall (who had already obtained a PhD from Harvard under the supervision of William James), James McKeen Cattell (who was Wundt's first assistant), and Frank Angell. The most influential British student was Edward Bradford Titchener (who later became professor at Cornell).

Experimental psychology laboratories were soon also established at Berlin by Carl Stumpf (1848–1936) and at Göttingen by Georg Elias Müller (1850–1934). Another major German experimental psychologist of the era, though he did not direct his own research institute, was Hermann Ebbinghaus (1850–1909).

Experimentation was not the only approach to psychology in the German-speaking world at this time. Starting in the 1890s, employing the case study technique, the Viennese physician Sigmund Freud developed and applied the methods of hypnosis, free association, and dream interpretation to reveal putatively unconscious beliefs and desires that he argued were the underlying causes of his patients' "hysteria." He dubbed this approach psychoanalysis. Freudian psychoanalysis is particularly notable for the emphasis it places on the course of an individual's sexual development in pathogenesis. Psychoanalytic concepts have had a strong and lasting influence on Western culture, particularly on the arts. Although its scientific contribution is still a matter of debate, both Freudian and Jungian psychology revealed the existence of compartmentalized thinking, in which some behavior and thoughts are hidden from consciousness – yet operative as part of the complete personality. Hidden agendas, a bad conscience, or a sense of guilt, are examples of the existence of mental processes in which the individual is not conscious, through choice or lack of understanding, of some aspects of their personality and subsequent behavior.

Psychoanalysis examines mental processes which affect the ego. An understanding of these theoretically allows the individual greater choice and consciousness with a healing effect in neurosis and occasionally in psychosis, both of which Richard von Krafft-Ebing defined as "diseases of the personality". Carl G. Jung was an associate of Freud's who later broke with him over Freud's emphasis on sexuality. Working with concepts of the unconscious first noted during the 1800s (by John Stuart Mill, Krafft-Ebing, Pierre Janet, Théodore Flournoy and others), Jung defined four mental functions which relate to and define the ego, the conscious self. Sensation (which tell consciousness that something is there), feelings (which consist of value judgments, and motivate our reaction to what we have sensed), intellect (an analytic function that compares this event to all known events and gives it a class and category, allowing us to understand a situation within a historical process, personal or public), and intuition (a mental function with access to deep behavioral patterns, intuition can suggest unexpected solutions or predict unforeseen consequences, "as if seeing around corners" as Jung put it). Jung insisted on an empirical psychology in which theories must be based on facts and not on the psychologist's projections or expectations.

Early American psychology

Around 1875 the Harvard physiology instructor (as he then was), William James, opened a small experimental psychology demonstration laboratory for use with his courses. The laboratory was never used, in those days, for original research, and so controversy remains as to whether it is to be regarded as the "first" experimental psychology laboratory or not. In 1878, James gave a series of lectures at Johns Hopkins University entitled "The Senses and the Brain and their Relation to Thought" in which he argued, contra Thomas Henry Huxley, that consciousness is not epiphenomenal, but must have an evolutionary function, or it would not have been naturally selected in humans. The same year James was contracted by Henry Holt to write a textbook on the "new" experimental psychology. If he had written it quickly, it would have been the first English-language textbook on the topic. It was twelve years, however, before his two-volume Principles of Psychology would be published. In the meantime textbooks were published by George Trumbull Ladd of Yale (1887) and James Mark Baldwin then of Lake Forest College (1889).

In 1879 Charles Sanders Peirce was hired as a philosophy instructor at Johns Hopkins University. Although better known for his astronomical and philosophical work, Peirce also conducted what are perhaps the first American psychology experiments, on the subject of color vision, published in 1877 in the American Journal of Science (see Cadwallader, 1974). Peirce and his student Joseph Jastrow published "On Small Differences in Sensation" in the Memoirs of the National Academy of Sciences, in 1884. In 1882, Peirce was joined at Johns Hopkins by G. Stanley Hall, who opened the first American research laboratory devoted to experimental psychology in 1883. Peirce was forced out of his position by scandal and Hall was awarded the only professorship in philosophy at Johns Hopkins. In 1887 Hall founded the American Journal of Psychology, which published work primarily emanating from his own laboratory. In 1888 Hall left his Johns Hopkins professorship for the presidency of the newly founded Clark University, where he remained for the rest of his career.

Soon, experimental psychology laboratories were opened at the University of Pennsylvania (in 1887, by James McKeen Cattell), Indiana University (1888, William Lowe Bryan), the University of Wisconsin (1888, Joseph Jastrow), Clark University (1889, Edmund Sanford), the McLean Asylum (1889, William Noyes), and the University of Nebraska (1889, Harry Kirke Wolfe). However, it was Princeton University's Eno Hall, built in 1924, that became the first university building in the United States to be devoted entirely to experimental psychology when it became the home of the university's Department of Psychology.[22]

In 1890, William James' Principles of Psychology finally appeared, and rapidly became the most influential textbook in the history of American psychology. It laid many of the foundations for the sorts of questions that American psychologists would focus on for years to come. The book's chapters on consciousness, emotion, and habit were particularly agenda-setting.

One of those who felt the impact of James' Principles was John Dewey, then professor of philosophy at the University of Michigan. With his junior colleagues, James Hayden Tufts (who founded the psychology laboratory at Michigan) and George Herbert Mead, and his student James Rowland Angell, this group began to reformulate psychology, focusing more strongly on the social environment and on the activity of mind and behavior than the psychophysics-inspired physiological psychology of Wundt and his followers had heretofore. Tufts left Michigan for another junior position at the newly founded University of Chicago in 1892. A year later, the senior philosopher at Chicago resigned, and Tufts recommended to Chicago president William Rainey Harper that Dewey be offered the position. After initial reluctance, Dewey was hired in 1894. Dewey soon filled out the department with his Michigan companions Mead and Angell. These four formed the core of the Chicago School of psychology.

In 1892, G. Stanley Hall invited 30-some psychologists and philosophers to a meeting at Clark with the purpose of founding a new American Psychological Association (APA). (On the history of the APA, see Evans, Staudt Sexton, & Cadwallader, 1992.) The first annual meeting of the APA was held later that year, hosted by George Stuart Fullerton at the University of Pennsylvania. Almost immediately tension arose between the experimentally and philosophically inclined members of the APA. Edward Bradford Titchener and Lightner Witmer launched an attempt to either establish a separate "Section" for philosophical presentations, or to eject the philosophers altogether. After nearly a decade of debate a Western Philosophical Association was founded and held its first meeting in 1901 at the University of Nebraska. The following year (1902), an American Philosophical Association held its first meeting at Columbia University. These ultimately became the Central and Eastern Divisions of the modern American Philosophical Association.

In 1894, a number of psychologists, unhappy with the parochial editorial policies of the American Journal of Psychology approached Hall about appointing an editorial board and opening the journal out to more psychologists not within Hall's immediate circle. Hall refused, so James McKeen Cattell (then of Columbia) and James Mark Baldwin (then of Princeton) co-founded a new journal, Psychological Review, which rapidly grew to become a major outlet for American psychological researchers.

Beginning in 1895, James Mark Baldwin and Edward Bradford Titchener (Cornell) entered into an increasingly acrimonious dispute over the correct interpretation of some anomalous reaction time findings that had come from the Wundt laboratory (originally reported by Ludwig Lange and James McKeen Cattell). In 1896, James Rowland Angell and Addison W. Moore (Chicago) published a series of experiments in Psychological Review appearing to show that Baldwin was the more correct of the two. However, they interpreted their findings in light of John Dewey's new approach to psychology, which rejected the traditional stimulus-response understanding of the reflex arc in favor of a "circular" account in which what serves as "stimulus" and what as "response" depends on how one views the situation. The full position was laid out in Dewey's landmark article "The Reflex Arc Concept in Psychology" which also appeared in Psychological Review in 1896.

Titchener responded in Philosophical Review (1898, 1899) by distinguishing his austere "structural" approach to psychology from what he termed the Chicago group's more applied "functional" approach, and thus began the first major theoretical rift in American psychology between Structuralism and Functionalism. The group at Columbia, led by James McKeen Cattell, Edward L. Thorndike, and Robert S. Woodworth, was often regarded as a second (after Chicago) "school" of American Functionalism (see, e.g., Heidbredder, 1933), although they never used that term themselves, because their research focused on the applied areas of mental testing, learning, and education. Dewey was elected president of the APA in 1899, while Titchener dropped his membership in the association. (In 1904, Titchener formed his own group, eventually known as the Society of Experimental Psychologists.) Jastrow promoted the functionalist approach in his APA presidential address of 1900, and Angell adopted Titchener's label explicitly in his influential textbook of 1904 and his APA presidential address of 1906. In reality, Structuralism was, more or less, confined to Titchener and his students. (It was Titichener's former student E. G. Boring, writing the most influential History of Experimental Psychology (1929/1950) textbook of the 20th century, who launched the common idea that the structuralism/functionalism debate was the primary fault line in American psychology at the turn of the 20th century.] Functionalism, broadly speaking, with its more practical emphasis on action and application, better suited the American cultural "style" and, perhaps more important, was more popular among university trustees and private funding agencies.

Early French psychology

In no small measure because of the conservatism of the reign of Louis Napoléon (president, 1848–1852; emperor as "Napoléon III", 1852–1870), academic philosophy in France through the middle part of the 19th century was controlled by members of the eclectic and spiritualist schools, led by figures such as Victor Cousin (1792–1867), Théodore Jouffroy (1796–1842), and Paul Janet (1823–1899). These were traditional metaphysical schools, opposed to regarding psychology as a natural science. With the ouster of Napoléon III after the débacle of the Franco-Prussian war, new paths, both political and intellectual, became possible. From the 1870 forward, a steadily increasing interest in positivist, materialist, evolutionary, and deterministic approaches to psychology developed, influenced by, among others, the work of Hyppolyte Taine (1828–1893) (e.g., De L'Intelligence, 1870) and Théodule Ribot (1839–1916) (e.g., La Psychologie Anglaise Contemporaine, 1870).

In 1876, Ribot founded Revue Philosophique (the same year as Mind was founded in Britain), which for the next generation would be virtually the only French outlet for the "new" psychology (Plas, 1997). Although not a working experimentalist himself, Ribot's many books were to have profound influence on the next generation of psychologists. These included especially his L'Hérédité Psychologique (1873) and La Psychologie Allemande Contemporaine (1879). In the 1880s, Ribot's interests turned to psychopathology, writing books on disorders of memory (1881), will (1883), and personality (1885), and where he attempted to bring to these topics the insights of general psychology. Although in 1881 he lost a Sorbonne professorship in the History of Psychological Doctrines to traditionalist Jules Soury (1842–1915), from 1885 to 1889 he taught experimental psychology at the Sorbonne. In 1889 he was awarded a chair at the Collège de France in Experimental and Comparative Psychology, which he held until 1896 (Nicolas, 2002).

France's primary psychological strength lay in the field of psychopathology. The chief neurologist at the Salpêtrière Hospital in Paris, Jean-Martin Charcot (1825–1893), had been using the recently revivied and renamed (see above) practice of hypnoisis to "experimentally" produce hysterical symptoms in some of his patients. Two of his students, Alfred Binet (1857–1911) and Pierre Janet (1859–1947), adopted and expanded this practice in their own work.

In 1889, Binet and his colleague Henri Beaunis (1830–1921) co-founded, at the Sorbonne, the first experimental psychology laboratory in France. Just five years later, in 1894, Beaunis, Binet, and a third colleague, Victor Henri (1872–1940), co-founded the first French journal dedicated to experimental psychology, L'Année Psychologique. In the first years of the 20th century, Binet was requested by the French government to develop a method for the newly founded universal public education system to identify students who would require extra assistance to master the standardized curriculum. In response, with his collaborator Théodore Simon (1873–1961), he developed the Binet-Simon Intelligence Test, first published in 1905 (revised in 1908 and 1911). Although the test was used to effect in France, it would find its greatest success (and controversy) in the United States, where it was translated in by Henry H. Goddard (1866–1957), the director of the Training School for the Feebleminded in Vineland, New Jersey, and his assistant, Elizabeth Kite (a translation of the 1905 edition appeared in the Vineland Bulletin in 1908, but much better known was Kite's 1916 translation of the 1908 edition, which appeared in book form). The translated test was used by Goddard to advance his eugenics agenda with respect to those he deemed congenitally feeble-minded, especially immigrants from non-Western European countries. Binet's test was revised by Stanford professor Lewis M. Terman (1877–1956) into the Stanford-Binet IQ test in 1916. With Binet's death in 1911, the Sorbonne laboratory and L'Année Psychologique fell to Henri Piéron (1881–1964). Piéron's orientation was more physiological that Binet's had been.

Pierre Janet became the leading psychiatrist in France, being appointed to the Salpêtrière (1890–1894), the Sorbonne (1895–1920), and the Collège de France (1902–1936). In 1904, he co-founded the Journale de Psychologie Normale et Pathologique with fellow Sorbonne professor Georges Dumas (1866–1946), a student and faithful follower of Ribot. Whereas Janet's teacher, Charcot, had focused on the neurologial bases of hysteria, Janet was concerned to develop a scientific approach to psychopathology as a mental disorder. His theory that mental pathology results from conflict between unconscious and conscious parts of the mind, and that unconscious mental contents may emerge as symptoms with symbolic meanings led to a public priority dispute with Sigmund Freud.

Paul Broca (1824–1880) who was a French surgeon, supported the work of the German physiologist, Johannes Müller (1801–1858) whose work created the evolution of biology. What Broca did was, in 1861, he performed an autopsy on the brain of a man who had a stroke a few years ago prior to his death. The man lost his ability to speak after his stroke. The part of the brain was the cereberal cortex on the left side of the brain. Broca then said that that was the region that affected the ability to speak. [Heth, C. Donald;Carlson,Neil R, Psychology the science of behaviour, Canadian fourth edition, 2010]

Early British psychology

Although the British had the first scholarly journal dedicated to the topic of psychology – Mind, founded in 1876 by Alexander Bain and edited by George Croom Robertson – it was quite a long while before experimental psychology developed there to challenge the strong tradition of "mental philosophy." The experimental reports that appeared in Mind in the first two decades of its existence were almost entirely authored by Americans, especially G. Stanley Hall and his students (notably Henry Herbert Donaldson) and James McKeen Cattell.

Francis Galton's (1822–1911) anthropometric laboratory opened in 1884. There people were tested on a wide variety of physical (e.g., strength of blow) and perceptual (e.g., visual acuity) attributes. In 1886 Galton was visited by James McKeen Cattell who would later adapt Galton's techniques in developing his own mental testing research program in the United States. Galton was not primarily a psychologist, however. The data he accumulated in the anthropometric laboratory primarily went toward supporting his case for eugenics. To help interpret the mounds of data he accumulated, Galton developed a number of important statistical techniques, including the precursors to the scatterplot and the product-moment correlation coefficient (later perfected by Karl Pearson, 1857–1936).

Soon after, Charles Spearman (1863–1945) developed the correlation-based statistical procedure of factor analysis in the process of building a case for his two-factor theory of intelligence, published in 1901. Spearman believed that people have an inborn level of general intelligence or g which can be crystallized into a specific skill in any of a number of narrow content area (s, or specific intelligence).

Laboratory psychology of the kind practiced in Germany and the United States was slow in coming to Britain. Although the philosopher James Ward (1843–1925) urged Cambridge University to establish a psychophysics laboratory from the mid-1870s forward, it was not until the 1891 that they put so much as £50 toward some basic apparatus (Bartlett, 1937). A laboratory was established through the assistance of the physiology department in 1897 and a lectureship in psychology was established which first went to W. H. R. Rivers (1864–1922). Soon Rivers was joined by C. S. Myers (1873–1946) and William McDougall (1871–1938). This group showed as much interest in anthropology as psychology, going with Alfred Cort Haddon (1855–1940) on the famed Torres Straits expedition of 1898.

In 1901 the Psychological Society was established (which renamed itself the British Psychological Society in 1906), and in 1904 Ward and Rivers co-founded the British Journal of Psychology.

Second generation German psychology

Würzburg School

In 1896, one of Wundt's former Leipzig laboratory assistants, Oswald Külpe (1862–1915), founded a new laboratory in Würzburg. Külpe soon surrounded himself with a number of younger psychologists, most notably Narziß Ach (1871–1946), Karl Bühler (1879–1963), Ernst Dürr (1878–1913), Karl Marbe (1869–1953), and Henry Jackson Watt (1879–1925). Collectively, they developed a new approach to psychological experimentation that flew in the face of many of Wundt's restrictions. Wundt had drawn a distinction between the old philosophical style of self-observation (Selbstbeobachtung) in which one introspected for extended durations on higher thought processes and inner-perception (innere Wahrnehmung) in which one could be immediately aware of a momentary sensation, feeling, or image (Vorstellung). The former was declared to be impossible by Wundt, who argued that higher thought could not be studied experimentally through extended introspection, but only humanistically through Völkerpsychologie (folk psychology). Only the latter was a proper subject for experimentation.

The Würzburgers, by contrast, designed experiments in which the experimental subject was presented with a complex stimulus (e.g., a Nietzschean aphorism or a logical problem) and after processing it for a time (e.g., interpreting the aphorism or solving the problem), retrospectively reported to the experimenter all that had passed through his consciousness during the interval. In the process, the Würzburgers claimed to have discovered a number of new elements of consciousness (over and above Wundt's sensations, feelings, and images) including Bewußtseinslagen (conscious sets), Bewußtheiten (awarenesses), and Gedanken (thoughts). In the English-language literature, these are often collectively termed "imageless thoughts", and the debate between Wundt and the Würzburgers as the "imageless thought controversy."

Wundt referred to the Würzburgers' studies as "sham" experiments and criticized them vigorously. Wundt's most significant English student, Edward Bradford Titchener, then working at Cornell, intervened in the dispute, claiming to have conducted extended introspective studies in which he was able to resolve the Würzburgers imageless thoughts into sensations, feelings, and images. He thus, paradoxically, used a method of which Wundt did not approve in order to affirm Wundt's view of the situation.[23]

The imageless thought debate is often said to have been instrumental in undermining the legitimacy of all introspective methods in experimental psychology and, ultimately, in bringing about the behaviorist revolution in American psychology. It was not without its own delayed legacy, however. Herbert A. Simon (1981) cites the work of one Würzburg psychologist in particular, Otto Selz (1881–1943), for having inspired him to develop his famous problem-solving computer algorithms (e.g., Logic Theorist and General Problem Solver) and his "thinking out loud" method for protocol analysis. In addition, Karl Popper studied psychology under Bühler and Selz, and appears to have brought some of their influence, unattributed, to his philosophy of science.[24]

Gestalt psychology

Whereas the Würzburgers debated with Wundt mainly on matters of method, another German movement, centered in Berlin, took issue with the widespread assumption that the aim of psychology should be to break consciousness down into putative basic elements. Instead, they argued that the psychological "whole" has priority and that the "parts" are defined by the structure of the whole, rather than vice versa. Thus, the school was named Gestalt, a German term meaning approximately "form" or "configuration." It was led by Max Wertheimer (1880–1943), Wolfgang Köhler (1887–1967), and Kurt Koffka (1886–1941). Wertheimer had been a student of Austrian philosopher, Christian von Ehrenfels (1859–1932), who claimed that in addition to the sensory elements of a perceived object, there is an extra element which, though in some sense derived from the organization of the standard sensory elements, is also to be regarded as being an element in its own right. He called this extra element Gestalt-qualität or "form-quality." For instance, when one hears a melody, one hears the notes plus something in addition to them which binds them together into a tune – the Gestalt-qualität. It is the presence of this Gestalt-qualität which, according to Von Ehrenfels, allows a tune to be transposed to a new key, using completely different notes, but still retain its identity. Wertheimer took the more radical line that "what is given me by the melody does not arise ... as a secondary process from the sum of the pieces as such. Instead, what takes place in each single part already depends upon what the whole is", (1925/1938). In other words, one hears the melody first and only then may perceptually divide it up into notes. Similarly in vision, one sees the form of the circle first – it is given "im-mediately" (i.e. its apprehension is not mediated by a process of part-summation). Only after this primary apprehension might one notice that it is made up of lines or dots or stars.

Gestalt-Theorie was officially initiated in 1912 in an article by Wertheimer on the phi-phenomenon; a perceptual illusion in which two stationary but alternately flashing lights appear to be a single light moving from one location to another. Contrary to popular opinion, his primary target was not behaviorism, as it was not yet a force in psychology. The aim of his criticism was, rather, the atomistic psychologies of Hermann von Helmholtz (1821–1894), Wilhelm Wundt (1832–1920), and other European psychologists of the time.

The two men who served as Wertheimer's subjects in the phi experiment were Köhler and Koffka. Köhler was an expert in physical acoustics, having studied under physicist Max Planck (1858–1947), but had taken his degree in psychology under Carl Stumpf (1848–1936). Koffka was also a student of Stumpf's, having studied movement phenomena and psychological aspects of rhythm. In 1917 Köhler (1917/1925) published the results of four years of research on learning in chimpanzees. Köhler showed, contrary to the claims of most other learning theorists, that animals can learn by "sudden insight" into the "structure" of a problem, over and above the associative and incremental manner of learning that Ivan Pavlov (1849–1936) and Edward Lee Thorndike (1874–1949) had demonstrated with dogs and cats, respectively.

The terms "structure" and "organization" were focal for the Gestalt psychologists. Stimuli were said to have a certain structure, to be organized in a certain way, and that it is to this structural organization, rather than to individual sensory elements, that the organism responds. When an animal is conditioned, it does not simply respond to the absolute properties of a stimulus, but to its properties relative to its surroundings. To use a favorite example of Köhler's, if conditioned to respond in a certain way to the lighter of two gray cards, the animal generalizes the relation between the two stimuli rather than the absolute properties of the conditioned stimulus: it will respond to the lighter of two cards in subsequent trials even if the darker card in the test trial is of the same intensity as the lighter one in the original training trials.

In 1921 Koffka published a Gestalt-oriented text on developmental psychology, Growth of the Mind. With the help of American psychologist Robert Ogden, Koffka introduced the Gestalt point of view to an American audience in 1922 by way of a paper in Psychological Bulletin. It contains criticisms of then-current explanations of a number of problems of perception, and the alternatives offered by the Gestalt school. Koffka moved to the United States in 1924, eventually settling at Smith College in 1927. In 1935 Koffka published his Principles of Gestalt Psychology. This textbook laid out the Gestalt vision of the scientific enterprise as a whole. Science, he said, is not the simple accumulation of facts. What makes research scientific is the incorporation of facts into a theoretical structure. The goal of the Gestaltists was to integrate the facts of inanimate nature, life, and mind into a single scientific structure. This meant that science would have swallow not only what Koffka called the quantitative facts of physical science but the facts of two other "scientific categories": questions of order and questions of Sinn, a German word which has been variously translated as significance, value, and meaning. Without incorporating the meaning of experience and behavior, Koffka believed that science would doom itself to trivialities in its investigation of human beings.

Having survived the onslaught of the Nazis up to the mid-1930s,[25] all the core members of the Gestalt movement were forced out of Germany to the United States by 1935.[26] Köhler published another book, Dynamics in Psychology, in 1940 but thereafter the Gestalt movement suffered a series of setbacks. Koffka died in 1941 and Wertheimer in 1943. Wertheimer's long-awaited book on mathematical problem-solving, Productive Thinking was published posthumously in 1945 but Köhler was now left to guide the movement without his two long-time colleagues.[27]

Emergence of behaviorism in America

Main article: Behaviorism

As a result of the conjunction of a number of events in the early 20th century, behaviorism gradually emerged as the dominant school in American psychology. First among these was the increasing skepticism with which many viewed the concept of consciousness: although still considered to be the essential element separating psychology from physiology, its subjective nature and the unreliable introspective method it seemed to require, troubled many. William James' 1904 Journal of Philosophy... article "Does Consciousness Exist?", laid out the worries explicitly.

Second was the gradual rise of a rigorous animal psychology. In addition to Edward Lee Thorndike's work with cats in puzzle boxes in 1898, the start of research in which rats learn to navigate mazes was begun by Willard Small (1900, 1901 in American Journal of Psychology). Robert M. Yerkes's 1905 Journal of Philosophy... article "Animal Psychology and the Criteria of the Psychic" raised the general question of when one is entitled to attribute consciousness to an organism. The following few years saw the emergence of John Broadus Watson (1878–1959) as a major player, publishing his dissertation on the relation between neurological development and learning in the white rat (1907, Psychological Review Monograph Supplement; Carr & Watson, 1908, J. Comparative Neurology & Psychology). Another important rat study was published by Henry H. Donaldson (1908, J. Comparative Neurology & Psychology). The year 1909 saw the first English-language account of Ivan Pavlov's studies of conditioning in dogs (Yerkes & Morgulis, 1909, Psychological Bulletin).

A third factor was the rise of Watson to a position of significant power within the psychological community. In 1908, Watson was offered a junior position at Johns Hopkins by James Mark Baldwin. In addition to heading the Johns Hopkins department, Baldwin was the editor of the influential journals, Psychological Review and Psychological Bulletin. Only months after Watson's arrival, Baldwin was forced to resign his professorship due to scandal. Watson was suddenly made head of the department and editor of Baldwin's journals. He resolved to use these powerful tools to revolutionize psychology in the image of his own research. In 1913 he published in Psychological Review the article that is often called the "manifesto" of the behaviorist movement, "Psychology as the Behaviorist Views It." There he argued that psychology "is a purely objective experimental branch of natural science", "introspection forms no essential part of its methods..." and "The behaviorist... recognizes no dividing line between man and brute". The following year, 1914, his first textbook, Behavior went to press. Although behaviorism took some time to be accepted as a comprehensive approach (see Samelson, 1981), (in no small part because of the intervention of World War I), by the 1920s Watson's revolution was well underway. The central tenet of early behaviorism was that psychology should be a science of behavior, not of the mind, and rejected internal mental states such as beliefs, desires, or goals. Watson himself, however, was forced out of Johns Hopkins by scandal in 1920. Although he continued to publish during the 1920s, he eventually moved on to a career in advertising (see Coon, 1994).

Among the behaviorists who continued on, there were a number of disagreements about the best way to proceed. Neo-behaviorists such as Edward C. Tolman, Edwin Guthrie, Clark L. Hull, and B. F. Skinner debated issues such as (1) whether to reformulate the traditional psychological vocabulary in behavioral terms or discard it in favor of a wholly new scheme, (2) whether learning takes place all at once or gradually, (3) whether biological drives should be included in the new science in order to provide a "motivation" for behavior, and (4) to what degree any theoretical framework is required over and above the measured effects of reinforcement and punishment on learning. By the late 1950s, Skinner's formulation had become dominant, and it remains a part of the modern discipline under the rubric of Behavior Analysis.

Behaviorism was the ascendant experimental model for research in psychology for much of the 20th century, largely due to the creation and successful application (not least of which in advertising) of conditioning theories as scientific models of human behaviour.

Second generation francophone psychology

Genevan School

In 1918, Jean Piaget (1896–1980) turned away from his early training in Natural History and began post-doctoral work in psychoanalysis in Zurich. In 1919, he moved to Paris to work at the Binet-Simon Lab. However, Binet had died in 1911 and Simon lived and worked in Rouen. His supervision therefore came (indirectly) from Pierre Janet, Binet's old rival and a professor at the Collège de France.

The job in Paris was relatively simple: to use the statistical techniques he had learned as a natural historian, studying molluscs, to standardize Cyril Burt's intelligence test for use with French children. Yet without direct supervision, he soon found a remedy to this boring work: exploring why children made the mistakes they did. Applying his early training in psychoanalytic interviewing, Piaget began to intervene directly with the children: "Why did you do that?" (etc.) It was from this that the ideas formalized in his later stage theory first emerged.

In 1921, Piaget moved to Geneva to work with Édouard Claparède at the Rousseau Institute.

In 1936, Piaget received his first honorary doctorate from Harvard.

In 1955, the International Center for Genetic Epistemology was founded: an interdisciplinary collaboration of theoreticians and scientists, devoted to the study of topics related to Piaget's theory.

In 1969, Piaget received the "distinguished scientific contributions" award from the American Psychological Association.

Cognitivism

Main article: Cognitive Psychology

Noam Chomsky's (1957) review of Skinner's book Verbal Behavior (that aimed to explain language acquisition in a behaviorist framework) is considered one of the major theoretical challenges to the type of radical behaviorism that Skinner taught. Chomsky showed that language could not be learned solely from the sort of operant conditioning that Skinner postulated. Chomsky's argument was that people could produce an infinite variety of sentences unique in structure and meaning and that these could not possibly be generated solely through experience of natural language. As an alternative, he concluded that there must be internal mental structures - states of mind of the sort that behaviorism rejected as illusory. Similarly, work by Albert Bandura showed that children could learn by social observation, without any change in overt behaviour, and so must be accounted for by internal representations.

The rise of computer technology also promoted the metaphor of mental function as information processing. This, combined with a scientific approach to studying the mind, as well as a belief in internal mental states, led to the rise of cognitivism as the dominant model of the mind.

Links between brain and nervous system function were also becoming common, partly due to the experimental work of people like Charles Sherrington and Donald Hebb, and partly due to studies of people with brain injury (see cognitive neuropsychology). With the development of technologies for accurately measuring brain function, neuropsychology and cognitive neuroscience have become some of the most active areas in contemporary psychology.

With the increasing involvement of other disciplines (such as philosophy, computer science, and neuroscience) in the quest to understand the mind, the umbrella discipline of cognitive science has been created as a means of focusing such efforts in a constructive way.

See also

References

  1. Ibrahim B. Syed PhD, "Islamic Medicine: 1000 years ahead of its times", Journal of the Islamic Medical Association, 2002 (2), p. 2-9.
  2. 2.0 2.1 Omar Khaleefa (Summer 1999). "Who Is the Founder of Psychophysics and Experimental Psychology?", American Journal of Islamic Social Sciences 16 (2). Link
  3. Hanafy A. Youssef, Fatma A. Youssef and T. R. Dening (1996), "Evidence for the existence of schizophrenia in medieval Islamic society", History of Psychiatry 7: 55-62 [57].
  4. O'Donohue, W. and Kitchener, R.F. (1996). The Philosophy of Psychology. London:Sage.
  5. see e.g., Everson, 1991; Green & Groff, 2003
  6. see, e.g., Robinson, 1995
  7. see, e.g., Durrant, 1993; Nussbaum & Rorty, 1992
  8. see e.g., Annas, 1992
  9. see e.g., Paranjpe, 1998
  10. A. Vanzan Paladin (1998), "Ethics and neurology in the Islamic world: Continuity and change", Italial Journal of Neurological Science 19: 255-258 [257], Springer-Verlag.
  11. 11.0 11.1 Nurdeen Deuraseh and Mansor Abu Talib (2005), "Mental health in Islamic medical tradition", The International Medical Journal 4 (2), p. 76-79.
  12. Muhammad Iqbal, The Reconstruction of Religious Thought in Islam, "The Spirit of Muslim Culture" (cf. [1] and [2])
  13. S Safavi-Abbasi, LBC Brasiliense, RK Workman (2007), "The fate of medical knowledge and the neurosciences during the time of Genghis Khan and the Mongolian Empire", Neurosurgical Focus 23 (1), E13, p. 3.
  14. Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", Journal of Religion and Health 43 (4): 357-377 [375].
  15. Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", Journal of Religion and Health 43 (4): 357-377 [361]
  16. 16.0 16.1 Amber Haque (2004), "Psychology from Islamic Perspective: Contributions of Early Muslim Scholars and Challenges to Contemporary Muslim Psychologists", Journal of Religion and Health 43 (4): 357-377 [363].
  17. 17.0 17.1 Martin-Araguz, A.; Bustamante-Martinez, C.; Fernandez-Armayor, Ajo V.; Moreno-Martinez, J. M. (2002). "Neuroscience in al-Andalus and its influence on medieval scholastic medicine", Revista de neurología 34 (9), p. 877-892.
  18. Muhammad Iqbal, The Reconstruction of Religious Thought in Islam, "The Spirit of Muslim Culture"
  19. G. A. Russell (1994), The 'Arabick' Interest of the Natural Philosophers in Seventeenth-Century England, pp. 224-262, Brill Publishers, ISBN 90-04-09459-8.
  20. Advances in the History of Psychology » Blog Archive » Presentism in the Service of Diversity?
  21. Webster, Richard (2005). Why Freud Was Wrong: Sin, Science and Psychoanalysis, Oxford: The Orwell Press.
  22. Glucksberg, S. History of the psychology department: Princeton University. Retrieved July 9, 2008 from http://psychlib.princeton.edu/history.htm
  23. see Kusch, 1995; Kroker, 2003
  24. Ter Hark, 2004
  25. see Henle, 1978
  26. Henle, 1984
  27. For more on the history of Gestalt psychology, see Ash, 1995

Further reading

Key texts

Books

  • American Psychological Association. Portraits of Pioneers in Psychology. New York: APA and Ehrlbaum, 2000.
  • [[Barrs B.J. (1986). The Cognitive Revolution in Psychology. New York:Guildford
  • Boring, E.G. (1950). A History of Experimental psychology. New York:Appleton-Century-Crofts.
  • Danziger, K. (1997). Naming the mind: How psychology found its language. London: Sage.
  • Evans, R. B., Staudt Sexton, V., & Cadwallader, T. C. (Eds.) (1992). The American Psychological Association: A historical perspective. Washington, DC: American Psychological Association.
  • Everson, S. (Ed.)(1991). Companions to Ancient thought 2: Psychology. New York: Cambridge University Press.
  • Fechner, G. T. (1860). Elemente der psychophysik. Engelmann(?).
  • Gardner, H. _ The Minds New Science:A History of the Cognitive Revolution. New Yorl:Basic.1985)
  • Winter, A. (1998). Mesmerized: Powers of mind in Victorian Briatin. Chicago: University of Chicago Press.
  • Wertheimer,Michael A Brief History of Psychology. 4th edition. Fort Worth TX: Harcourt Brace, 2000.
  • Zusne Leonard (1975), Names in the history of psychology. this contains biographical information on over 500 individuals who were judged by a panel of experts as having made significant contributions to the development of psychology.

Papers

Additional material

Books

  • Annas, J. E. (1992). Hellenistic philosophy of mind. Berkeley, CA: University of California Press.
  • Ash, M. G. (1995). Gestalt psychology in German culture, 1890-1967. Cambridge, UK: Cambridge University Press.
  • Bakalis, N. (2005). Handbook of Greek Philosophy: From Thales to the Stoics: Analysis and Fragments. Victoria, BC: Trafford Publishing.
  • Bardon, F. (2001). Initiation Into Hermetics. Salt Lake City, UT: Merkur Publishing Co..
  • Bartlett, F. C. (1937). Cambridge, England: 1887–1937. American Journal of Psychology, 50, 97–110.
  • Bringmann, W. G. & Tweney, R. D. (Eds.) (1980). Wundt studies. Toronto: Hogrefe.
  • Cadwallader, T. C. (1974). Charles S. Peirce (1839–1914). The first American experimental psychologist. Journal of the *History of the Behavioral Sciences, 10, 291–298.
  • Cockren, A. (2007). Alchemy Rediscovered and Restored. New York, NY: Forgotten Books.
  • Coon, Deborah J. (1994). 'Not a Creature of Reason': The Alleged Impact of Watsonian Behaviorism on Advertising in the 1920s. In J.T. Todd & E.K. Morris (Eds.), Modern Perspectives on John B. Watson and Classical Behaviorism. New York: Greenwood.
  • Cooper, J. C. (1990). Chinese Alchemy: the Daoist Quest for Immortality. New York, NY: Sterling Publishing Co. Inc..
  • Durrant, M. (Ed.) (1993). Aristotle's De Anima in focus. London: Routledge.
  • Edgell, Beatrice & Symes, W. Legge (1906). The Wheatstone-Hipp Chronoscope. Its Adjustments, Accuracy, and Control. British Journal of Psychology, 2, 58–88.
  • Edwardes, M. (1977). The Dark Side of History. New York, NY: Stein and Day.
  • Gree C. D. (2000). Introduction to: "Perception: An introduction to the Gestalt-Theorie"

by Kurt Koffka (1922). Classics in the History of Psychology (http://psychclassics.yorku.ca/Koffka/Perception/intro.htm).

  • Green, C. D. & Groff, P. R. (2003). Early psychological thought: Ancient accounts of mind and soul. Westport, CT: Praeger.
  • Hauck, D. W. (2008). The Complete Idiot’s Guide to Alchemy. New York, NY: Alpha.
  • Heidbredder, E. (1933). Seven psychologies. New York: Appleton-Century-Crofts.
  • Henle, M. (1978). One man against the Nazis: Wolfgang Köhler. American Psychologist, 33, 939–944.
  • Henle, M. (1984). Robert M. Ogden and gestalt psychology in America. Journal of the History of the Behavioral Sciences, 20, 9–19.
  • Hollister, C. W. & Bennett, J. (1990). Medieval Europe: A Short History. New York, NY: McGraw-Hill College.n,
  • Jarzombek, M. (2000). The Psychologizing of Modernity Cambridge: Cambridge University Press.
  • Jung, C. G. (1980). Psychology and Alchemy. New York, NY: Routledge.
  • Koffka, K. (1922). Perception: and introduction to the Gestalt-theorie. Psychological Bulletin, 19, 531–585.
  • Koffka, K. (1924). The growth of the mind (R. M. Ogden, Trans.). London: Routledge & Kegan Paul. (Original work published 1921)
  • Koffka, K. (1935). Principles of Gestalt psychology. New York: Harcourt, Brace, & World.
  • Köhler, W. (1925). Mentality of apes (E. Winter, Trans.). London: Routledge & Kegan Paul. (Original work published 1917)
  • Köhler, W. (1940). Dynamics in psychology. New York: Liveright.
  • Nicolas, S. (2002). Histoire de la psychologie française: Naissance d'une nouvelle science. Paris: In Press.
  • Nussbaum, M. C. & Rorty, A. O. (Eds.) (1992). Essay on Aristotle's De Anima. Oxford: Clarendon Press.
  • Paranjpe, A. C. (1998). Self and identity in modern psychology and Indian thought. New York: Springer.
  • Plas, R. (1997). French psychology. In W. G. Bringmann, H. E. Lück, R. Miller, & C. E. Early (Eds.), A pictorial history of psychology (pp. 548–552). Chicago: Quintessence.
  • Plato, & Whitaker, K. A. (1996). Plato: Parmenides. Newburyport, MA: Focus Publishing.
  • Rieber, R. W. & Robinson, D. K. (Eds.) (2001). Wilhelm Wundt in history: The making of a scientific psychology. New York: Kluwer & Plenum.
  • Robinson, T. M. (1995). Plato's psychology (2nd ed.). Toronto: University of Toronto Press.
  • Schwartz, J. M. & Begley, S. (2002). The Mind and The Brain: Neuroplasticity and the Power of Mental Force. New York, NY: Harper Perennial.
  • Shapin, S. (1975). Phrenological knowledge and the social structure of early nineteenth-century Edinburgh. Annals of Science, 32, 219–243.
  • Simon, Herbert A. (1981) Otto Selz and information-processing psychology. In N. H. Frijda A. D. de Groot (Eds.), Otto Selz: His Contribution to Psychology, Mouton, The Hague.
  • Sokal, M. M. (2001). Practical phrenology as psychological counseling in the 19th-century United States. In C. D. Green, M. Shore, & T. Teo (Eds.), The transformation of psychology: Influences of 19th-century philosophy, technology, and natural science (pp. 21–44). Washington D.C.: American Psychological Association.
  • Ter Hark, Michel. (2004). Popper, Selz, and the rise of evolutionary epistemology. Cambridge, UK: Cambridge University Press.
  • Three Initiates, (1940). The Kybalion. Chicago, IL: Yogi Publication Society.
  • van der Eijk, P. (2005). Medicine and Philosophy in Classical Antiquity: Doctors and Philosophers on Nature, Soul, Health and Disease. New York, NY: Cambridge University Press.
  • van Wyhe, J. (2004). Phrenology and the origins of scientific naturalism. Aldershot, Hants, UK.
  • Watson, J. B. (1913). Psychology as the behaviorist views it. Psychological Review, 20, 158–177.
  • Wertheimer, M. (1912). Experimentelle Studien über das Sehen Bewegung. Zeitschrift für Psychologie, 61, 247–250.
  • Wertheimer, M. (1938). Gestalt theory. In W. D. Ellis (Ed. & Trans.), A source book of gestalt psychology (pp. 1–11). London: Routledge & Kegan Paul. (Original work published 1925)
  • Wertheimer, W. (1945). Productive thinking. London: Tavistock.

Papers

  • history+psychology
  • Kroker, K. (2003). The progress of instrospection in America, 1896–1938. Studies in History and Philosophy of Biological and Biomedical Sciences, 34, 77–108.
  • Krstic, K. (1964). Marko Marulic—The Author of the Term "Psychology." Acta Instituti Psychologici Universitatis Zagrabiensis, no. 36, pp. 7–13. Reprinted at http://psychclassics.yorku.ca/Krstic/marulic.htm
  • Kusch, M. (1995). Recluse, interlocutor, interrogator: Natural and social order in turn-of-the-century psychological research schools. Isis, 86, 419–439.

Dissertations

External links

Scholarly Journals

For more information, including rejection rates and average publication lag, see this report

Scholarly Societies & Associations

Internet Resources

E-Textbooks

Collections of Primary Source Texts

Collections of Secondary Scholarship on the History of Psychology

Websites of Physical Archives

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