Etiology of Triarchic Psychopathy Dimensions in Chimpanzees (Pan troglodytes)

Robert D. Latzman*, Christopher J. Patrick, Hani D. Freeman, Steven J. Schapiro, William D. Hopkins

*Corresponding author af dette arbejde

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

14 Citationer (Scopus)

Abstract

The current study undertook analyses of genealogical data from a sample of 178 socially housed chimpanzees (Pan troglodytes) with well-documented pedigrees to clarify the etiologic bases of triarchic psychopathy dimensions and the influence of early social rearing experiences. Whereas biometric analyses for the full sample indicated significant heritability for the boldness dimension of psychopathy only, heritability estimates varied by early rearing, with all three triarchic dimensions showing significant heritabilities among mother-reared but not nursery-reared apes. For mother-reared apes, both genes and environment contributed to covariance between meanness and disinhibition, whereas environment contributed mainly to covariation between these dimensions and boldness. Results indicate contributions of both genes and environment to psychopathic tendencies, with an important role for early rearing in their relative contributions to distinct phenotypic subdimensions. In conjunction with findings from human studies, results provide valuable insights into core biobehavioral processes relevant to psychological illness and health.

OriginalsprogEngelsk
TidsskriftClinical Psychological Science
Vol/bind5
Udgave nummer2
Sider (fra-til)341-354
Antal sider14
ISSN2167-7026
DOI
StatusUdgivet - 1 mar. 2017

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