[Psychological consequences of severe overweight in teenagers]


Peer Victimization in Childhood and Internalizing Problems in Adolescence: A Prospective Longitudinal Study



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Peer Victimization in Childhood and Internalizing Problems in Adolescence: A Prospective Longitudinal Study.


Zwierzynska KWolke DLereya TS.

Source


Department of Psychology, University of Warwick, Coventry, CV4 7AL, UK.

Abstract


Traumatic childhood experiences have been found to predict later internalizing problems. This prospective longitudinal study investigated whether repeated and intentional harm doing by peers (peer victimization) in childhood predicts internalizing symptoms in early adolescence. 3,692 children from the Avon Longitudinal Study of Parents and Children (ALSPAC), as well as their mothers and teachers, reported on bullying in childhood (7-10 years) and internalizing problems in early adolescence (11-14 years). Controlling for prior psychopathology, family adversity, gender and IQ, being a victim of bullying was associated with higher overall scores, as well as increased odds of scoring in the severe range (>90(th) percentile) for emotional and depression symptoms. Victims were also more likely to show persistent depression symptoms over a 2-year period. These associations were found independent of whether mothers, teachers or the children reported on bullying. It is concluded that peer victimization in childhood is a precursor of both short-lived and persistent internalizing symptoms, underlining the importance of environmental factors such as peer relationships in the etiology of internalizing problems.

Psychol Med. 2012 Sep 7:1-12. [Epub ahead of print]

Adolescent bullying, cannabis use and emerging psychotic experiences: a longitudinal general population study.


Mackie CJO'Leary-Barrett MAl-Khudhairy NCastellanos-Ryan NStruve MTopper LConrod P.

Source


Addictions Department, Institute of Psychiatry, King's College London, UK.

Abstract

BACKGROUND:


Using longitudinal and prospective measures of psychotic experiences during adolescence, we assessed the risk of developing psychosis in three groups showing low, increasing and elevated psychotic experiences associated with bullying by peers and cannabis use in a UK sample of adolescents. Method Data were collected by self-report from 1098 adolescents (mean age 13.6 years; 60.9% boys) at five separate time points, equally separated by 6 months, across a 24-month period. General growth mixture modelling identified three distinct trajectories of adolescents reporting psychotic experiences: elevated, increasing and low.

RESULTS:


Controlling for cannabis usebullying by peers significantly predicted change in psychotic experiences between Time 2 and Time 5 in adolescents belonging to the increasing group. No effect was found for the elevated or low groups. Controlling for bullying, an earlier age of cannabis use and cannabis use more than twice significantly predicted change in psychotic experiences in adolescents belonging to the increasing group. Cannabis use at any age was significantly associated with subsequent change in psychotic experiences in the low group. Reverse causal associations were examined and there was no evidence for psychotic experiences at Time 1 predicting a subsequent change in cannabis use between Times 2 and 5 in any trajectory group.

CONCLUSIONS:


Bullying by peers and cannabis use are associated with adolescents' reports of increasing psychotic experiences over time. Further research into the longitudinal development of psychosis in adolescence and the associated risk factors would allow for early intervention programmes to be targeted more precisely.

J Youth Adolesc. 2012 Sep 7. [Epub ahead of print]

Predicting Homophobic Behavior Among Heterosexual Youth: Domain General and Sexual Orientation-Specific Factors at the Individual and Contextual Level.


Paul Poteat VDigiovanni CDScheer JR.

Source


Boston College, Chestnut Hill, MA, USA, poteatp@bc.edu.

Abstract


As a form of bias-based harassment, homophobic behavior remains prominent in schools. Yet, little attention has been given to factors that underlie it, aside from bullying and sexual prejudice. Thus, we examined multiple domain general (empathy, perspective-taking, classroom respect norms) and sexual orientation-specific factors (sexual orientation identity importance, number of sexual minority friends, parents' sexual minority attitudes, media messages). We documented support for a model in which these sets of factors converged to predict homophobic behavior, mediated through bullyingand prejudice, among 581 students in grades 9-12 (55 % female). The structural equation model indicated that, with the exception of media messages, these additional factors predicted levels of prejudice and bullying, which in turn predicted the likelihood of students to engage in homophobic behavior. These findings highlight the importance of addressing multiple interrelated factors in efforts to reduce bullying, prejudice, and discrimination among youth.

Int J Soc Psychiatry. 2012 Sep 12. [Epub ahead of print]

Having been bullied in childhood: Relationship to aggressive behaviour in adulthood.


Sansone RALeung JSWiederman MW.

Source


University School of Medicine in Dayton, Ohio, USA and Department of Psychiatry Education, Kettering Medical Center, Ohio, USA.

Abstract

AIMS:


Victimization through being bullied in childhood is traditionally associated with subsequent internalizing symptoms, but some literature suggests otherwise. In this study, we examined a history of being bullied in relationship to 21 externalized aggressive behaviours in adulthood.

METHODS:


Using a cross-sectional approach and a self-report survey methodology, we examined a history of being bullied in childhood in relation to 21 aggression variables in a consecutive sample of 342 internal medicine outpatients.

RESULTS:


In comparison with the not bullied, participants who reported having been bullied in childhood had a statistically significantly greater overall number of self-reported aggressive behaviours. Longer duration of being bullied was statistically significantly correlated with a greater number of reported aggressive behaviours. With regard to individual behaviours, four were statistically significantly associated with being bullied: hitting walls; intentionally breaking things; getting into fist fights; and pushing/shoving a partner.

CONCLUSIONS:


While relationships between bullying in childhood and subsequent internalizing symptoms have been well established, the present study indicates that bullying in childhood is also associated with externalizing/aggressive behaviours in adulthood.

Eur Child Adolesc Psychiatry. 2012 Sep 29. [Epub ahead of print]


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