Linkages between children's and their friends' social and physical aggression: Evidence for a gene-environment interaction?
Linkages between children's and their friends' social and physical aggression: Evidence for a gene-environment interaction?
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DOI：
10.1111/j.1467-8624.2007.01108.x
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发表时间：
2008-01-01
影响因子：
4.6
通讯作者：
Perusse, Daniel
中科院分区：
文献类型：
--
作者：
Brendgen, Mara;Vitaro, Frank;Perusse, Daniel
基于406个7岁的双胞胎样本，本研究分别研究了暴露于朋友的社交或身体攻击是否会调节遗传性对儿童自身社交和身体攻击的影响。单变量分析表明，儿童自己的社会和身体的侵略显着解释的遗传因素，而朋友的社会和身体的侵略代表“真正的”环境因素是无关的儿童的遗传倾向。多变量分析进一步表明，在朋友和孩子的身体攻击之间的联系可能存在基因-环境交互作用，但在朋友和孩子的社会攻击之间的联系没有。相反，朋友的社会攻击性与儿童的社会攻击性直接相关，除了遗传对这种行为的影响。这些结果的理论和实践意义进行了讨论。
Based on a sample of 406 seven-year-old twins, this study examined whether exposure to friends' social or physical aggression, respectively, moderates the effect of heritability on children's own social and physical aggression. Univariate analyses showed that children's own social and physical aggression were significantly explained by genetic factors, whereas friends' social and physical aggression represented "true" environmental factors that were unrelated to children's genetic dispositions. Multivariate analyses further suggested a possible gene-environment interaction in the link between friends' and children's physical aggression but not in the link between friends' and children's social aggression. Instead, friends' social aggression was directly related to children's social aggression, in addition to genetic effects on this behavior. Theoretical and practical implications of these results are discussed.