A longitudinal biosocial study of cortisol and peer influence on the development of adolescent antisocial behavior

E. Platje, R. Vermeiren, A. Raine, Th.A.H. Doreleijers, L. Keijsers, S.T.J. Branje, A. Popma, P.A.C. van Lier, H.M. Koot, W.H.J. Meeus, L.M.C. Jansen

Research output: Contribution to journalArticleScientificpeer-review

14 Citations (Scopus)
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Abstract

It is increasingly recognized that in order to understand the complex phenomenon of antisocial behavior, interrelations between biological and social risk factors should be taken into account. In the current study, this biosocial approach was applied to examine the mediating role of deviant peers in longitudinal associations linking the level of hypothalamic-pituitary-adrenal (HPA) axis activity to aggression and rule-breaking.
Participants were 425 boys and girls from the general population, who were assessed yearly at ages 15, 16, and 17. As a measure of HPA axis activity, cortisol was assessed at awakening, 30, and 60 min later (the cortisol awakening response, CAR). Participants, as well as their best friend, reported on their own aggressive and rule-breaking behavior, thereby allowing to assess bidirectional influences within friendships.
Aggression was only predicted by a decreased cortisol level at awakening, and not by aggressive behavior of their friend. Decreased levels of cortisol at awakening predicted adolescents’ rule-breaking, which subsequently predicted increased rule-breaking of their best friend. The latter was only found for adolescents who changed friends, as compared to adolescents with the same friend in every year. Gender differences were not found.
These findings suggest that interrelations between biological and social risk factors are different for the development of aggression versus rule-breaking. Furthermore, decreased levels of HPA axis activity may represent a susceptibility to selecting deviant peers.
Original languageEnglish
Pages (from-to)2770-2779
JournalPsychoneuroendocrinology
Volume38
Issue number11
DOIs
Publication statusPublished - 2013

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