Abstract：
Peers are important socializers of adolescent prosocial behavior. Still, the proximal cognitive and emotional process underlying this link and the sources of individual differences in sensitivity to peer influence have yet to be explored. Utilizing the gene-gene-environment (G × G × E) approach and multi-informant measurement, this study investigated how peer relationships operate to influence adolescent prosocial behavior by examining the mediating role of cognitive and emotional empathy, and the moderating role of the OXTR and DRD2 genes. The study utilized longitudinal data from a community sample of Chinese adolescents (N = 1080, Mage = 13.32 years at T1). Results showed that cognitive empathy rather than emotional empathy mediated the link between peer acceptance/rejection and prosocial behavior. Furthermore, the association among peer acceptance, cognitive empathy, and prosocial behavior was moderated by OXTR and DRD2. Specifically, adolescents with the combinations of AA/AA or G/G genotypes of OXTR/DRD2 benefited more from peer acceptance compared to their counterparts carrying other combined genotypes. The findings highlight cognitive empathy as a proximal process linking peer interaction to prosocial behavior and lend support to the interaction between oxytocinergic and dopaminergic systems on environmental sensitivity.
摘要：
同伴是青少年亲社会行为的重要社会化者。尽管如此，这种联系背后的近端认知和情感过程以及个体对同伴影响的敏感性差异的来源尚待探索。利用基因-基因-环境(G×G×E)方法和多信息测量，这项研究通过研究认知和情感移情的中介作用来调查同伴关系如何影响青少年的亲社会行为，以及OXTR和DRD2基因的调节作用。该研究利用了来自中国青少年社区样本的纵向数据（T1时N=1080，Mage=13.32岁）。结果表明，认知移情而不是情感移情介导了同伴接受/拒绝和亲社会行为之间的联系。此外，同行接受之间的关联，认知移情，亲社会行为由OXTR和DRD2调节。具体来说,与携带其他组合基因型的青少年相比,OXTR/DRD2的AA/AA或G/G基因型组合的青少年从同行接受中获益更多.研究结果强调了认知移情是将同伴互动与亲社会行为联系起来的近端过程，并为催产素能和多巴胺能系统之间对环境敏感性的相互作用提供了支持。
