Peer antisocial behavior robustly predicts adolescents' own behavior but not all adolescents are equally vulnerable to their peers' influence and genetic factors may confer vulnerability. This study used data of = 3081 adolescents from the Avon Longitudinal Study of Parents and Children (ALSPAC) to examine whether , a polymorphism that affects psychological functioning, moderates the association between affiliation with aggressive peers at age 10 and own aggression at age 15. A significant gene-environment interaction was found, where those who affiliated with aggressive peers in childhood showed increased risk for being aggressive in adolescence if they carried the met-met variant compared to val-val carriers. Our findings underline the importance of both biological and social factors for adolescent development.
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| http://dx.doi.org/10.1111/jora.12050 | DOI Listing |
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