Shared genes, shared experiences, and similarity of personality: data from 14,288 adult Finnish co-twins.
Shared genes, shared experiences, and similarity of personality: data from 14,288 adult Finnish co-twins.
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共享基因、共享经历和性格相似性:来自 14,288 名成年芬兰双胞胎的数据。
DOI:
10.1037//0022-3514.54.1.161
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发表时间:
1988
影响因子:
7.6
通讯作者:
Langinvainio,H
中科院分区:
文献类型:
--
作者:
Rose,RJ;Koskenvuo,M;Kaprio,J;Sarna,S;Langinvainio,H
Similarities for Extraversion (E) and Neuroticism (N) scale scores from the Eysenck Personality Inventory were evaluated in 7,144 adult twin pairs, drawn from the population-based Finnish Twin Cohort, as a function of the co-twins' genetic resemblance, gender, age, and the frequency of their social interaction with each other. To separate effects of shared genes from those of shared experience, we performed hierarchical multiple regressions of double-entry data matrices. Results establish the predictive significance of both genetic and experiential influences: Genetic effects remained significant when tested after the effects of social contact were first removed; conversely, for N scores, the effects of social contact remained significant when assessed after genetic influences were first removed. These findings establish genetic variance in major dimensions of adult personality but assign a significant role to common experience as well. The first finding constructively replicates reports by others; the second challenges the widespread assumption that shared experiences have a negligible impact on sibling similarity in adult personality.