Etiology of Triarchic Psychopathy Dimensions in Chimpanzees (Pan troglodytes)

TY - JOUR

T1 - Etiology of Triarchic Psychopathy Dimensions in Chimpanzees (Pan troglodytes)

AU - Latzman, Robert D.

AU - Patrick, Christopher J.

AU - Freeman, Hani D.

AU - Schapiro, Steven J.

AU - Hopkins, William D.

PY - 2017/3/1

Y1 - 2017/3/1

N2 - 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.

AB - 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.

KW - chimpanzees

KW - early rearing

KW - heritability

KW - nonhuman primate models

KW - psychopathic personality

UR - http://www.scopus.com/inward/record.url?scp=85016236033&partnerID=8YFLogxK

U2 - 10.1177/2167702616676582

DO - 10.1177/2167702616676582

M3 - Journal article

C2 - 28503367

AN - SCOPUS:85016236033

SN - 2167-7026

VL - 5

SP - 341

EP - 354

JO - Clinical Psychological Science

JF - Clinical Psychological Science

IS - 2

ER -