Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |

Clinical: Approaches · Group therapy · Techniques · Types of problem · Areas of specialism · Taxonomies · Therapeutic issues · Modes of delivery · Model translation project · Personal experiences ·

Boris Sidis, Ph.D., M.D. (October 12, 1867 - October 24, 1923) was a Russian psychologist, physician, psychiatrist, and philosopher of education. Sidis founded the New York State Psychopathic Institute and the Journal of Abnormal Psychology. He was the father of the child prodigy William James Sidis. Boris Sidis eventually opposed mainstream psychology and Sigmund Freud, and thereby died ostracized.


Born in Ukraine,[1] he emigrated to the U.S. in 1887 to escape political persecution. Due to the May Laws, he was imprisoned for at least two years, according to William James Sidis' biographer, Amy Wallace. He later credited his ability to think to this long solitary confinement.[1] His wife, Sarah Mandelbaum Sidis, M.D., and her family fled the pogroms about 1889.

Boris completed four degrees at Harvard (a B.A., M.A., Ph.D. and M.D.) and studied under William James. He was influential in the early 20th century, known for pioneering work in psychopathology (founding the New York State Psychopathic Institute and the Journal of Abnormal Psychology), hypnoid/hypnotic states, and group psychology. He is also noted for vigorously applying the Theory of Evolution to the study of psychology.

He vehemently opposed World War I, viewing war as a social disease, and denigrated the widely held concept of eugenics. He sought to provide insight into why people behave as they do, particularly in cases of a mob frenzy or religious mania. With the publication of his book Nervous Ills: Their Cause and Cure[2] in 1922, he summarized much of his previous work in diagnosing, understanding and treating nervous disorders. He saw fear as an underlying cause of much human mental suffering and problematic behavior.

Sidis applied his own psychological approaches to raising his son, William James Sidis, in whom he wished to promote a high intellectual capacity. His son has been considered among the most intelligent people ever (with a ratio IQ broadly estimated at 250-300).[citation needed] However, after receiving much publicity for his childhood feats, he came to live an eccentric life, and died in relative obscurity. Boris Sidis himself derided intelligence testing as "silly, pedantic, absurd, and grossly misleading."[2]

With Boris' fulminations against mainstream psychology and Sigmund Freud, he died ostracized by the community he had helped create.

Partial bibliographyEdit

Wikisource has original text related to this article:
  • The Psychology of Suggestion: A Research into the Subconscious Nature of Man and Society (1898)
  • Psychopathological Researches: Studies in Mental Dissociation (1902)
  • Multiple Personality: An Experimental Investigation into Human Individuality (1904)
  • An Experimental Study of Sleep (1909)
  • Philistine and Genius (1911)
  • The Psychology of Laughter (1913)
  • The Foundations of Normal and Abnormal Psychology (1914)
  • Symptomatology, Psychognosis, and Diagnosis of Psychopathic Diseases (1914)
  • The Causation and Treatment of Psychopathic Diseases (1916)
  • The Source and Aim of Human Progress: A Study in Social Psychology and Social Pathology (1919)
  • Nervous Ills: Their Cause and Cure (1922)

See alsoEdit


  1. Wallace, Amy (1986). The prodigy: a biography of William James Sidis, America's greatest child prodigy. New York: E.P. Dutton & Co.. ISBN 0-525-24404-2.
  2. Foundations of Normal and Abnormal psychology at


  • Wallace, Amy, The prodigy: A biography of William James Sidis, America's greatest child prodigy, New York: E.P. Dutton & Co. 1986. ISBN 0-525-24404-2
  • "Boris Sidis." Dictionary of American biography base set. American Council of Learned Societies, 1928-1936. Reproduced in Biography Resource Center. Farmington Hills, Mich.: Thomson Gale. 2005.
  • See External Links for source of much of the details of Sidis's life from unpublished archive documents by his wife and daughter.

External linksEdit

Wikimedia Commons has media related to:
Wikiquote has a collection of quotations related to:

This page uses Creative Commons Licensed content from Wikipedia (view authors).

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.