Journal article

A preliminary investigation of the construct of psychopathic personality (psychopathy) in chimpanzees (Pan troglodytes)

Lilienfeld S, Gershon J, Duke M, Marino L, de Waal F ...see all

Journal of Comparative Psychology, vol. 113, issue 4 (1999) pp. 365-375

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Although the construct of psychopathy has received considerable attention in humans, its relevance to other animals is largely unknown. We developed a measure of psychopathy for use in chimpanzees (Pan troglodytes), the Chimpanzee Psychopathy Measure (CPM), and asked 6 raters to complete this index on 34 chimpanzees. The CPM (a) demonstrated satisfactory interrater reliability and internal consistency; (b) exhibited marginally significant sex differences (males > females); (c) correlated positively with measures of extraversion, agreeableness, and observational ratings of agonism, sexual activity, daring behaviors, teasing, silent bluff displays, and temper tantrums, and negatively with observational ratings of generosity; and (d) demonstrated incremental validity above and beyond a measure of dominance. Although further validation of the CPM is needed, these findings suggest that the psychopathy construct may be relevant to chimpanzees.

Author-supplied keywords

  • *Social Behavior
  • Age Factors
  • Analysis of Variance
  • Animals
  • Antisocial Personality Disorder/*diagnosis/psychol
  • Ethology/*methods
  • Female
  • Male
  • Observer Variation
  • Pan troglodytes/*psychology
  • Psychiatric Status Rating Scales/*standards
  • Reproducibility of Results
  • Sex Characteristics

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  • S O Lilienfeld

  • J Gershon

  • M Duke

  • L Marino

  • F B de Waal

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