Gene–environment interaction between peer victimization and child aggression / Mara BRENDGEN in Development and Psychopathology, 20-2 (Spring 2008)  

Public ISBD [article]  inDevelopment and Psychopathology > 20-2 (Spring 2008) . - p.455-471 Titre : Gene–environment interaction between peer victimization and child aggression Type de document : Texte imprimé et/ou numérique Auteurs : Mara BRENDGEN, Auteur ; Frank VITARO, Auteur ; Alain GIRARD, Auteur ; Michel BOIVIN, Auteur ; Ginette DIONNE, Auteur ; Daniel PERUSSE, Auteur Année de publication : 2008 Article en page(s) : p.455-471 Langues : Anglais (eng) Index. décimale : PER Périodiques Résumé : Although peer victimization places children at serious risk for aggressive behavior, not all victimized children are aggressive. The diathesis–stress hypothesis of disease proposes that an environmental stressor such as peer victimization should to lead to maladjustment mostly in those individuals with preexisting genetic vulnerabilities. Accordingly, this study examined whether the link between peer victimization and child aggression is moderated by children's genetic risk for such behavior. Using a sample of 506 6-year-old twins, peer victimization was assessed through peer nominations and aggressive behavior was assessed through peer and teacher reports. Children's genetic risk for aggression was estimated as a function of their co-twin's aggression and the pair's zygosity. Genetic modeling showed that peer victimization is an environmentally driven variable that is unrelated to children's genetic disposition. Results also provided support for the notion of a gene–environment interaction between peer victimization and child's genetic risk for aggressive behavior, albeit only in girls. For boys, peer victimization was related to aggression regardless of the child's genetic risk for such behavior. Different socialization experiences in girls' compared to boys' peer groups may explain the different pattern of results for girls and boys. En ligne : http://dx.doi.org/10.1017/s0954579408000229 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=412 [article] Gene–environment interaction between peer victimization and child aggression [Texte imprimé et/ou numérique] / Mara BRENDGEN, Auteur ; Frank VITARO, Auteur ; Alain GIRARD, Auteur ; Michel BOIVIN, Auteur ; Ginette DIONNE, Auteur ; Daniel PERUSSE, Auteur . - 2008 . - p.455-471. Langues : Anglais (eng) in Development and Psychopathology > 20-2 (Spring 2008) . - p.455-471 Index. décimale : PER Périodiques Résumé : Although peer victimization places children at serious risk for aggressive behavior, not all victimized children are aggressive. The diathesis–stress hypothesis of disease proposes that an environmental stressor such as peer victimization should to lead to maladjustment mostly in those individuals with preexisting genetic vulnerabilities. Accordingly, this study examined whether the link between peer victimization and child aggression is moderated by children's genetic risk for such behavior. Using a sample of 506 6-year-old twins, peer victimization was assessed through peer nominations and aggressive behavior was assessed through peer and teacher reports. Children's genetic risk for aggression was estimated as a function of their co-twin's aggression and the pair's zygosity. Genetic modeling showed that peer victimization is an environmentally driven variable that is unrelated to children's genetic disposition. Results also provided support for the notion of a gene–environment interaction between peer victimization and child's genetic risk for aggressive behavior, albeit only in girls. For boys, peer victimization was related to aggression regardless of the child's genetic risk for such behavior. Different socialization experiences in girls' compared to boys' peer groups may explain the different pattern of results for girls and boys. En ligne : http://dx.doi.org/10.1017/s0954579408000229 Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=412

Gene–environment interplay between peer rejection and depressive behavior in children / Mara BRENDGEN in Journal of Child Psychology and Psychiatry, 50-8 (August 2009)  

Public ISBD [article]  inJournal of Child Psychology and Psychiatry > 50-8 (August 2009) . - p.1009-1017 Titre : Gene–environment interplay between peer rejection and depressive behavior in children Type de document : Texte imprimé et/ou numérique Auteurs : Mara BRENDGEN, Auteur ; Richard E. TREMBLAY, Auteur ; Frank VITARO, Auteur ; Alain GIRARD, Auteur ; Michel BOIVIN, Auteur ; Ginette DIONNE, Auteur ; Daniel PERUSSE, Auteur ; William M. BUKOWSKI, Auteur Année de publication : 2009 Article en page(s) : p.1009-1017 Langues : Anglais (eng) Mots-clés : Gene–environment interaction • gene–environment correlation • depressive-behavior peer-rejection childhood twins behavioral-genetics Index. décimale : PER Périodiques Résumé : Background: Genetic risk for depressive behavior may increase the likelihood of exposure to environmental stressors (gene–environment correlation, rGE). By the same token, exposure to environmental stressors may moderate the effect of genes on depressive behavior (gene–environment interaction, G×E). Relating these processes to a peer-related stressor in childhood, the present study examined (1) whether genetic risk for depressive behavior in children is related to higher levels of rejection by the peer group (rGE) and (2) whether peer rejection moderates the effect of genetic factors on children's depressive behavior (G×E). Methods: The sample comprised 336 twin pairs (MZ pairs = 196, same-sex DZ pairs = 140) assessed in kindergarten (mean age 72.7 months). Peer acceptance/rejection was measured via peer nominations. Depressive behavior was measured through teacher ratings. Results: Consistent with rGE, a moderate overlap of genetic effects was found between peer acceptance/rejection and depressive behavior. In line with G×E, genetic effects on depressive behavior varied across levels of peer acceptance/rejection. Conclusions: An increased genetic disposition for depressive behavior is related to a higher risk of peer rejection (rGE). However, genes play a lesser role in explaining individual differences in depressive behavior in rejected children than in accepted children (G×E). En ligne : http://dx.doi.org/10.1111/j.1469-7610.2009.02052.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=788 [article] Gene–environment interplay between peer rejection and depressive behavior in children [Texte imprimé et/ou numérique] / Mara BRENDGEN, Auteur ; Richard E. TREMBLAY, Auteur ; Frank VITARO, Auteur ; Alain GIRARD, Auteur ; Michel BOIVIN, Auteur ; Ginette DIONNE, Auteur ; Daniel PERUSSE, Auteur ; William M. BUKOWSKI, Auteur . - 2009 . - p.1009-1017. Langues : Anglais (eng) in Journal of Child Psychology and Psychiatry > 50-8 (August 2009) . - p.1009-1017 Mots-clés : Gene–environment interaction • gene–environment correlation • depressive-behavior peer-rejection childhood twins behavioral-genetics Index. décimale : PER Périodiques Résumé : Background: Genetic risk for depressive behavior may increase the likelihood of exposure to environmental stressors (gene–environment correlation, rGE). By the same token, exposure to environmental stressors may moderate the effect of genes on depressive behavior (gene–environment interaction, G×E). Relating these processes to a peer-related stressor in childhood, the present study examined (1) whether genetic risk for depressive behavior in children is related to higher levels of rejection by the peer group (rGE) and (2) whether peer rejection moderates the effect of genetic factors on children's depressive behavior (G×E). Methods: The sample comprised 336 twin pairs (MZ pairs = 196, same-sex DZ pairs = 140) assessed in kindergarten (mean age 72.7 months). Peer acceptance/rejection was measured via peer nominations. Depressive behavior was measured through teacher ratings. Results: Consistent with rGE, a moderate overlap of genetic effects was found between peer acceptance/rejection and depressive behavior. In line with G×E, genetic effects on depressive behavior varied across levels of peer acceptance/rejection. Conclusions: An increased genetic disposition for depressive behavior is related to a higher risk of peer rejection (rGE). However, genes play a lesser role in explaining individual differences in depressive behavior in rejected children than in accepted children (G×E). En ligne : http://dx.doi.org/10.1111/j.1469-7610.2009.02052.x Permalink : https://www.cra-rhone-alpes.org/cid/opac_css/index.php?lvl=notice_display&id=788

---

1 (1 - 2 / 2)