Heritability of aggression and irritability: A twin study of the Buss-Durkee aggression scales in adult male subjects
Heritability of aggression and irritability: A twin study of the Buss-Durkee aggression scales in adult male subjects
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DOI:
10.1016/s0006-3223(96)00257-0
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发表时间:
1997-02-01
影响因子:
10.6
通讯作者:
Seroczynski, AD
中科院分区:
文献类型:
--
作者:
Coccaro, EF;Bergeman, CS;Seroczynski, AD
To determine the degree of genetic and environmental influences on assessments of aggression and irritability in male subjects, the ''Motor Aggression'' subscales of the Buss-Durkee Hostility Inventory (BDHI) were mailed to 1208 male twins in the Vietnam Era Twin Registry. Data from monozygotic 182 and 118 dizygotic twin pairs were available and were analyzed using model-fitting procedures. Three of the four BDHI subscales demonstrated significant heritability of a nonadditive nature: 40% for Indirect Assault, 37% for Irritability, and 28% for Verbal Assault. Additive genetic variance accounted for 47% of the individual differences in Direct Assault. Nonshared, but not shared, environmental influences contributed to explaining the variance in the model, with estimates ranging from 53% (Direct Assault) to 72% (Verbal Assault), Because some of these BDHI scales have been shown to correlate with indices of central serotonin function, it is possible that impulsive aggression, as reflected by these scales, is heritable in men. (C) 1997 Society of Biological Psychiatry.