TY - JOUR
T1 - Peer victimization and aggression
T2 - Moderation by individual differences in salivary cortiol and alpha-amylase
AU - Rudolph, Karen D.
AU - Troop-Gordon, Wendy
AU - Granger, Douglas A.
N1 - Funding Information:
Acknowledgements We would like to thank the families and schools who participated in this study. We are grateful to Jamie Abaied, Monica Agoston, Hannah Banagale, Molly Bartlett, Sarah Kang, Megan Flynn, Nicole Llewelyn, and Niwako Sugimura for their assistance in data collection and management. This research was funded by a University of Illinois Arnold O. Beckman Award and National Institute of Mental Health Grant MH68444 awarded to Karen D. Rudolph.
PY - 2010/8
Y1 - 2010/8
N2 - This research examined whether variations in salivary measures of the hypothalamic-pituitary-adrenal axis (cortisol) and autonomic nervous system (alpha amylase [sAA]) contribute to individual differences in the association between peer victimization and aggression. Children (N∈=∈132; M age∈=∈9.46 years, SD∈=∈0.33) completed a measure of peer victimization, teachers rated children's aggression, and children's saliva was collected prior to, and following, participation in a laboratory-based peer-oriented social challenge task. Children rated their level of frustration at the end of the task. Results revealed that victimization interacted with cortisol and sAA measured in anticipation of the task to predict aggression; the victimization × cortisol contribution to aggression was partly mediated by children's self-reported frustration level. Victimization also was associated with heightened frustration in girls with high task-related sAA reactivity. Task-related sAA reactivity was associated with heightened aggression, but only for girls. These findings suggest that associations between peer victimization and aggression are moderated by variation in the activity of the major components of the psychobiology of stress; results are discussed in relation to theoretical models of individual differences in biological sensitivity to context.
AB - This research examined whether variations in salivary measures of the hypothalamic-pituitary-adrenal axis (cortisol) and autonomic nervous system (alpha amylase [sAA]) contribute to individual differences in the association between peer victimization and aggression. Children (N∈=∈132; M age∈=∈9.46 years, SD∈=∈0.33) completed a measure of peer victimization, teachers rated children's aggression, and children's saliva was collected prior to, and following, participation in a laboratory-based peer-oriented social challenge task. Children rated their level of frustration at the end of the task. Results revealed that victimization interacted with cortisol and sAA measured in anticipation of the task to predict aggression; the victimization × cortisol contribution to aggression was partly mediated by children's self-reported frustration level. Victimization also was associated with heightened frustration in girls with high task-related sAA reactivity. Task-related sAA reactivity was associated with heightened aggression, but only for girls. These findings suggest that associations between peer victimization and aggression are moderated by variation in the activity of the major components of the psychobiology of stress; results are discussed in relation to theoretical models of individual differences in biological sensitivity to context.
KW - Aggression
KW - Cortisol
KW - Peer victimization
KW - Salivary alpha amylase
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U2 - 10.1007/s10802-010-9412-3
DO - 10.1007/s10802-010-9412-3
M3 - Article
C2 - 20405198
AN - SCOPUS:77956064039
SN - 0091-0627
VL - 38
SP - 843
EP - 856
JO - Journal of Abnormal Child Psychology
JF - Journal of Abnormal Child Psychology
IS - 6
ER -