This research examined the moderating effect of the autonomic nervous system (ANS) on the associations between relational victimization and reactive and proactive relational aggression. Both branches of the ANS, the parasympathetic nervous system (indexed by respiratory sinus arrhythmia reactivity; RSA-Reactivity) and the sympathetic nervous system (indexed by skin conductance level reactivity; SCL-Reactivity), were examined. Emerging adults (N = 168) self-reported on relational victimization and proactive and reactive relational aggression; RSA-Reactivity and SCL-Reactivity were assessed in response to a laboratory stressor. Relational victimization predicted heightened reactive relational aggression given RSA augmentation/high SCL-Reactivity (i.e., coactivation) and RSA withdrawal/low SCL-Reactivity (i.e., coinhibition). In addition, relational victimization predicted heightened reactive relational aggression given RSA augmentation/low SCL-Reactivity (i.e., reciprocal parasympathetic activation). This study extends previous research on relational victimization and provides novel evidence that (a) exposure to relational victimization is associated with reactive relational aggression, but not proactive relational aggression, and (b) parasympathetic and sympathetic nervous system reactivity jointly moderate the link between relational victimization and reactive relational aggression.

A burgeoning literature supports the role of autonomic nervous system (ANS) functioning as an index of physiologic sensitivity to the environment, but extant research is limited in its focus on single branches of the ANS, childhood samples, and solely negative environmental factors. This study seeks to address these limitations by exploring whether reactivity in the parasympathetic (PNS) and sympathetic (SNS) nervous systems jointly moderate the prospective contributions of both positive (maternal involvement) and negative (maternal psychological control) aspects of the family environment to developmentally relevant outcomes in adolescence (depressive symptoms and emotion regulation). At Wave 1, adolescents (n = 352, 52% female, M age = 15.27, SD = 1.04; 65% White) and their parents completed a problem-solving discussion task, during which adolescent ANS activation was continuously monitored, and reports of maternal involvement, maternal psychological control, adolescent depressive symptoms, and adolescent emotion regulation were obtained. Adolescent depressive symptoms and emotion regulation were assessed again 1 year later (Wave 2). Results indicated that PNS and SNS reactivity jointly moderated the prospective contributions of maternal involvement and maternal psychological control to depressive symptoms and emotion regulation. Specifically, adolescents who exhibited reciprocal SNS activation appeared to be most sensitive to both positive and negative parenting environments. Adolescents exhibiting coinhibition or coactivation profiles of autonomic reactivity were comparatively unreactive to parenting. This study corroborates the notion that consideration of multiple physiological systems is critical to our understanding of biological processes in the development of emotional functioning in adolescence. (PsycINFO Database Record

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When studying factors that may heighten risk for relational aggression in youth, it is important to consider characteristics of both the individual and their environment. This research examined the associations between parental psychological control and reactive and proactive relational aggression in emerging adults in college. Given that sympathetic nervous system (SNS) activation may underlie differences between reactive and proactive aggression and has been shown to moderate the effects of parenting on youth development, the moderating role of SNS reactivity [indexed by skin conductance level reactivity (SCLR)] was also examined. Emerging adults (N = 180; 77.2 % female) self-reported on perceptions of parental psychological control and reactive and proactive relational aggression. SCLR was assessed in response to an interpersonal laboratory challenge task. Parental psychological control was positively associated with reactive relational aggression only for emerging adults who exhibited high SCLR. Parental psychological control was positively associated with proactive relational aggression only among emerging adults who showed low SCLR. This study extends previous research on parenting and aggression and suggests that parental psychological control is differentially associated with reactive versus proactive relational aggression, depending on emerging adults' SCLR to interpersonal stress.

This research examined the longitudinal association between parent socialization of coping and child adjustment, as well as the moderating role of children's skin conductance level reactivity (SCLR). Participants were a community sample of children (n = 64, M age = 9.02, 54.5% females, 93.2% Caucasian) and their parent(s). Parent coping suggestions were observed while their child engaged in a stressful challenge task, during which the child's SCLR, a measure of children's physiological reactivity to stress, was also measured. Parent(s) completed the Child Behavior Checklist (Achenbach & Rescorla, 2001) at baseline and a 6-month follow-up to assess internalizing and externalizing problems. Results revealed that secondary control engagement suggestions predicted fewer internalizing problems over time. In addition, disengagement suggestions predicted fewer externalizing problems over time among children with high SCLR. This study provides evidence that parent coping suggestions serve as a resource that protects youth from developing adjustment problems.