Investigating genetic and environmental contributions to adolescent externalizing behavior in a collectivistic culture: a multi-informant twin study
Investigating genetic and environmental contributions to adolescent externalizing behavior in a collectivistic culture: a multi-informant twin study
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DOI：
10.1017/s0033291714003109
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发表时间：
2015-07-01
影响因子：
6.9
通讯作者：
McGue, M.
中科院分区：
文献类型：
--
作者：
Chen, J.;Yu, J.;McGue, M.
背景在集体主义文化中，青少年外化行为的病因学知之甚少。我们的目的是通过调查中国青少年Ext的遗传和环境影响来填补这一空白。攻击性（AGG）和规则破坏（RB）的病因异质性也进行了检查。研究样本包括908对10 - 18岁的同性双胞胎（平均= 13.53岁，S.D.）。= 2.26）。采用Achenbach经验性评估系统，包括儿童行为量表、教师报告表和青少年自我报告表，对青少年的外展性进行评估。单变量遗传分析表明，所有措施的遗传影响是温和的范围从34%至50%，非共享的环境影响范围从23%至52%，和共享的环境影响是显着的父母和教师报告的措施范围从29%至43%。双变量遗传分析表明，AGG和RB具有较大的遗传影响（r（g）= 0.64-0.79），但有中等程度的非共享环境因素（r（e）= 0.34-0.52）。中国青少年的Ext受遗传因素的中等影响。AGG和RB具有中度独立的遗传和非共享的环境影响，因此构成了中国青少年Ext中病因学上不同的维度。特别是AGG的遗传力在中国青少年中比以前在西方同龄人中获得的数据所表明的要小。本研究表明，集体主义文化价值观和儒家哲学可能会削弱Ext的遗传潜力，尤其是AGG。
Background. Little is known about the etiology of adolescents' externalizing behavior (Ext) in collectivistic cultures. We aimed to fill this gap by investigating the genetic and environmental influences on Ext in Chinese adolescents. The etiological heterogeneity of aggression (AGG) and rule breaking (RB) was also examined.Method. The study sample included 908 pairs of same-sex twins aged from 10 to 18 years (mean = 13.53 years, S.D. = 2.26). Adolescents' Ext were assessed with the Achenbach System of Empirically Based Assessment including Child Behavior Checklist, Teacher Report Form, and Youth Self-Report.Results. Univariate genetic analyses showed that genetic influences on all measures were moderate ranging from 34% to 50%, non-shared environmental effects ranged from 23% to 52%, and shared environmental effects were significant in parent-and teacher-reported measures ranging from 29% to 43%. Bivariate genetic analyses indicated that AGG and RB shared large genetic influences (r(g) = 0.64-0.79) but moderate non-shared environmental factors (r(e) = 0.34-0.52).Conclusions. Chinese adolescents' Ext was moderately influenced by genetic factors. AGG and RB had moderate independent genetic and non-shared environmental influences, and thus constitute etiologically distinct dimensions within Ext in Chinese adolescents. The heritability of AGG, in particular, was smaller in Chinese adolescents than suggested by previous data obtained on Western peers. This study suggests that the collectivistic cultural values and Confucianism philosophy may attenuate genetic potential in Ext, especially AGG.