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The Mask of Sanity is a book written by Hervey Cleckley, M.D., first published in 1941, describing Cleckley's clinical interviews with incarcerated psychopaths. It is considered a seminal work and the most influential clinical description of psychopathy in the 20th century. The basic elements of psychopathy outlined by Cleckley are still relevant today. The title refers to the normal "mask" that conceals the mental disorder of the psychopathic person in Cleckley's conceptualization.
Cleckley describes the psychopathic person as outwardly a perfect mimic of a normally functioning person, able to mask or disguise the fundamental lack of internal personality structure, an internal chaos that results in repeatedly purposeful destructive behavior, often more self-destructive than destructive to others. Despite the seemingly sincere, intelligent, even charming external presentation, internally the psychopathic person does not have the ability to experience genuine emotions. Cleckley questions whether this mask of sanity is voluntarily assumed intentionally to hide the lack of internal structure, or if the mask hides a serious, but yet unidentified, psychiatric defect.
An expanded edition of the book was published in 1982, after the DSM, the manual used in the United States for categorizing psychiatric disorders, had changed the name and standards for the classification of psychopathy to antisocial personality disorder, incorporating most of Cleckley's 16 characteristics of a psychopath listed below. The original edition of the book is no longer available.
In the 1800s, Philippe Pinel first used the French term manie sans delire ("mania without delirium") to designate those individuals engaging in deviant behavior but exhibiting no signs of a cognitive disorder such as hallucinations or delusions. Although the meaning of the term has changed through numerous writings on the subject over time, the writing of Cleckley and his use of the label "psychopath" in The Mask of Sanity brought the term into popular usage.
The first edition of the book was based on Cleckley's clinical observations of adult male hospitalized "psychopaths". Additional experience with expanded populations led to subsequent editions of the book. The Mask of Sanity, fourth edition, presents the clinical data gathered on an expanded population of subjects, written in the form of dramatic, novelistic descriptions of 13 individuals, an amalgamation of the thousands he has interviewed.
In these vignettes, Cleckley presents a typical psychopath's behavior: for example, the psychopath's ability to tell vivid, lifelike, plausible stories that are completely fraudulent, without evincing any element of delusion. When confronted with a lie, the psychopath is unbothered and can often effortlessly pass it off as a joke. In another typical case history, the psychopath is psychiatrically hospitalized, but because of his constant trouble-making, leaving wards in an uproar, the hospital is finally forced to turn him over to the police. Eventually, the police become so sick of his repeated antics that they try to get him out of their way and hospitalize him again.
Cleckley introduced 16 behavioral characteristics of a psychopath: 
- Superficial charm and good intelligence
- Absence of delusions and other signs of irrational thinking
- Absence of nervousness or psychoneurotic manifestations
- Untruthfulness and insincerity
- Lack of remorse and shame
- Inadequately motivated antisocial behavior
- Poor judgment and failure to learn by experience
- Pathologic egocentricity and incapacity for love
- General poverty in major affective reactions
- Specific loss of insight
- Unresponsiveness in general interpersonal relations
- Fantastic and uninviting behavior with drink and sometimes without
- Suicide threats rarely carried out
- Sex life impersonal, trivial, and poorly integrated
- Failure to follow any life plan.
Some of the criteria have obvious psychodynamic implications, such as a lack of remorse, poor judgment, failure to learn from experience, pathological egocentricity, lack of capacity for love, a general poverty in major affective reactions, and lack of insight into his own condition. Starting in 1972, newer editions of the book reflected a closer alliance with Kernberg's (1984) borderline level of personality organization, specifically defining the structural criteria of the psychopath's identity integration, defensive operations and reality testing.
Cleckley also introduced the term "semantic dementia" (used today to refer to a medical disorder unconnected to Cleckley's meaning) to refer to the inability of this personality type to "understand the meaning of life as lived by ordinary people". Behind the mask of sanity, the psychopath's "emotional mechanism had collapsed".
In summary, Cleckley clearly distinguishes the psychopath from other disorders such as neurotic alcoholics, psychoneurotics, criminal sex offenders and typical criminals. The psychopath does not suffer from any obvious mental disorder. Cleckley characterizes the psychopath as, despite apparent intelligence, seeming to deliberately court failure and disaster for no obvious reason, what Cleckley calls a social and spiritual suicide, or semi-suicide. For example, the classic alcoholic drinks to avoid reality, while the psychopath drinks simply to get into trouble.
Cleckley is very clear that there are important distinctions between the psychopath and the average criminal:
- The psychopath very seldom takes much advantage of what he gains and almost never works consistently toward a goal in crime or anything else, seemingly lacking purpose.
- Criminal ends, though condemned, can usually be understood by the average man. It is not hard to understand why a criminal steals money. However, the psychopath, if he steals or defrauds, appears to do so for an obscure purpose, sometimes incomprehensibly throwing away much of value for short-term gains.
- The criminal usually spares harm to himself as much as he can and harms others. The psychopath, although he causes sorrow and trouble for others, usually puts himself in a shameful position. His most serious damage to others is often through their concern for him and their futile efforts to help him.
- The typical psychopath, from Cleckley's observations, usually avoids murder or other offenses that lead to lengthy prison sentences. The larger part of the psychopath's antisocial behavior can be interpreted as purposely designed to harm himself. Cleckley adds that most of the people who commit violent and serious crimes fail to show the chief characteristics of a psychopath.
Cleckley states that although a "considerable proportion" of inmates in penal institutions show indications of a psychopathic disorder, only a small proportion of typical psychopaths are likely to be found in an incarcerated environment.
As in his first edition, Cleckley makes no claim to offer an effective treatment for the condition in the 1982 edition. "What little research is available, however, does indicate that although the core antisocial behaviours of the psychopath are difficult to manage, some of the associative behaviours displayed by the condition, and more commonly linked with other clinical syndromes, may be responsive to clinical intervention." The difficult question is whether or not to treat what psychiatrists know is treatable or to attempt to treat the outward symptoms.
One reviewer describes the author's viewpoint as presenting a paradox in that Cleckley's "keen clinical observations" are not integrated into a meaningful psychological model. Cleckley questions the usefulness of psychoanalytic approaches, while at the same time he uses some psychoanalytic explanatory concepts. The rich clinical detail is not developed into a systematic psychological theory.
The label "psychopath" as used by Cleckley had been embraced by popular culture, and is often applied to serial killers and other violent criminals, irrespective of whether they qualify (although many serial killers do); for this reason the imprecise popular use had been deplored. Therefore, although in popular culture the term is common, it had little relevance to criminology, forensic psychology or psychiatry.
Robert Hare developed a Psychopathy Checklist based on the psychopath construct developed by Cleckley. Later two items were removed from the checklist in order to more clearly represent the structure of a two-factor analysis.
The DSM-III committee, in attempting to develop a trait-oriented basis for the antisocial personality diagnosis, made efforts to combine the work of Lee Robbins's 1966 criteria of behavioral acts with trait items based on the work of Cleckley, as his list of core traits still remains relevant.
- ↑ Psychopathy - What Is Psychopathy?. URL accessed on 2007-12-14.
- ↑ 2.0 2.1 2.2 Meloy, J. Reid (1988). The Psychopathic Mind: Origins, Dynamics, and Treatment, Northvale, NJ: Jason Aronson Inc..
- ↑ Cleckley, p. 238
- ↑ Cleckley, pp. 149–152
- ↑ Cleckley, pp.338-339 (5th ed.)
- ↑ Meloy, p. 10
- ↑ 7.0 7.1 (1941). Semi-Suicides. Time Magazine. URL accessed on 2007-12-23.
- ↑ Cleckley, pp. 249–252
- ↑ Cleckley p. 14
- ↑ Cleckley p. viii, 280
- ↑ Joseph J. Michaels, M.D. (1965). The Mask of Sanity - Book Review. (PDF) Psychosomatic Medicine, Volume XXIV No. 5. URL accessed on 2007-12-15.
- ↑ Cameron, Deborah (1987). The Lust to Kill, 87–94, Washington Square, NY: New York University Press.
- ↑ 13.0 13.1 Millon, Theodore; Roger D. Davis (1996). Disorders of Personality: DSM-IV and Beyond, 169, 443, New York: John Wiley & Sons, Inc..
- Cleckley, Hervey (1982). The Mask of Sanity, Mosby Medical Library.
- Meloy, J. Reid (1988). The Psychopathic Mind: Origins, Dynamics, and Treatment, Jason Aronson Inc..
- Millon, Theodore; Roger D. Davis (1996). Disorders of Personality: DSM-IV and Beyond, New York: John Wiley & Sons, Inc..
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