The development of forms and functions of aggression during early childhood: A temperament-based approach

Relational Victimization, Characterological Self-Blame, and Adjustment in Young Children

The associations between relational victimization, self-blame attributions, and internalizing problems in early childhood has not previously been examined. Using a sample of 116 preschool children, average age 44.05 months (SD = 4.23), multiple informants, multiple methods, and a longitudinal design, path analyses were conducted to explore the associations between relational victimization, self-blame attributions (Characterological Self-Blame[CSB] and Behavioral Self-Blame[BSB]), and maladjustment in early childhood. Concurrent significant associations were found between relational victimization and internalizing problems. The initial longitudinal models revealed some significant effects that were consistent with predictions. Importantly, follow-up tests decomposing internalizing problems, indicated that anxiety at Time 1 was positively and significantly associated with CSB at Time 2. Depression at Time 1 was negatively and significantly associated with CSB at Time 2. Implications of this work are discussed.

Is autonomic functioning distinctly associated with anxiety and unsociability in preschoolers?

There are many benefits of peer interactions for children's social, emotional, and cognitive development, and isolation from peers may have negative consequences for children. Although biological processes may underlie social withdrawal broadly, distinct patterns may be associated with withdrawal behaviors depending on their underlying motivation (e.g., shy versus disinterested). This study investigated the role of autonomic nervous system activity, as assessed via skin conductance level (SCL) and respiratory sinus arrhythmia (RSA) in predicting changes in unsociability (e.g., lack of interest in peers) and anxious-fearfulness (e.g., discomfort among peers). Data were collected using a community sample of 92 US preschool children (45.7% female; Mage = 45.51 months, SDage = 3.81 months) at two time points one year apart. Gender differences were also explored. Baseline physiology was assessed while viewing a neutral video clip, and reactivity was assessed while viewing social exclusion and post-aggression discussion videos. For all children, coinhibition (i.e., SCL inhibition accompanied by RSA inhibition) to the post-aggression discussion video and blunted SCL activation to the exclusion video were prospectively associated with higher levels of anxious-fearfulness one year later. For boys only, baseline reciprocal sympathetic activation (i.e., SCL activation and RSA inhibition) was prospectively related to higher levels of unsociability one year later. For girls only, RSA inhibition in response to the post-aggression discussion video was prospectively related to higher levels of unsociability one year later. Findings contribute to a growing literature on autonomic reactivity in preschoolers' adjustment and suggest possible differences in the physiological processes underlying unsociability and anxious-fearfulness.

Autonomic nervous system reactivity to emotion and childhood trajectories of relational and physical aggression

This study investigated the role of autonomic nervous system (ANS) coordination in response to emotion in girls' and boys' development of relational (e.g., ignoring, excluding) and physical (e.g., hitting, kicking) aggression. Caregivers reported on children's relational and physical aggression at ages 6, 7, 8, and 10 years (N = 232, 50.4% girls, 46.6% Latinx). Sympathetic nervous system (assessed via pre-ejection period) and parasympathetic nervous system (assessed via respiratory sinus arrhythmia) reactivity were measured in response to video clips depicting fear, happiness, and sadness at age 7. Growth curve models indicated that ANS reactivity to sadness, but not to fear or happiness, was related to trajectories of relational aggression. In contrast, ANS reactivity to all three emotions was associated with trajectories of physical aggression. Effects differed across genders, indicating that distinct patterns of ANS reactivity to emotion may be involved in girls' and boys' development of aggression. Overall, these findings contribute to a growing literature documenting the role of ANS reactivity to emotion in aggressive behavior. Moreover, this study considers ANS reactivity to specific emotions, as related to both relational and physical aggression, and as differentially expressed among girls versus boys.

Preschool Aggression and Victimization: A Short-Term Longitudinal Analysis of the Immediate Social Environment

Introduction

Preschool aggression, a significant concern, requires an in-depth examination beyond individual factors. This study explored the link between individual characteristics, immediate social environment variables, and the likelihood of preschoolers being nominated as aggressors or victims. The novelty of the study lies in its comprehensive longitudinal examination, using a multi-informant approach, of how family dynamics, peer relations, teacher-child interactions, and community factors are related to preschool aggression within the context of Bronfenbrenner's ecological system theory.

Methods

Data was collected at two points, four months apart, to investigate the interplay among sociodemographic, individual, family, and school factors and subsequent child aggression. The study included 394 children (184 girls, 210 boys), aged 3 to 6 years (M = 4.36, SD = 0.87). Caregivers completed questionnaires on socioeconomic status, community relationships, children's emotional regulation, and family functioning. Teachers rated closeness with each child, while children nominated liked and disliked peers, as well as those exhibiting aggressive or victimized behaviour.

Results

Logistic regression models revealed stronger associations between peer aggression and victimization and individual factors over microsystems. Surprisingly, community cohesion showed a robust positive link with an increased likelihood of children being nominated as victims, challenging the assumption that positive parenting practices and strong community cohesion always leads to positive outcomes for individuals.

Discussion

The study advances theoretical understanding by examining how factors within preschoolers' microsystems influence aggressive behaviors, contributing to more holistic models for addressing preschool aggression and victimization in schools. The findings highlight the significance of targeted interventions, emphasizing early identification of aggression or victimization signs and customized programs for social and emotional skill development. Addressing parental stress and interparental conflict is crucial. Additionally, community-based initiatives, like strengthening support networks, play a pivotal role in fostering healthier social dynamics among preschoolers.

Trajectories of physical and relational aggression across early childhood: Relations with peer risk factors

The goal of the current study was to examine trajectories of relational and physical aggression in early childhood and evaluate peer predictors of these trajectories (i.e., peer rejection, relational victimization, and physical victimization). The study spanned three-time points (T1 in the spring, T2 in the fall, and T3 in the spring) in early childhood (N = 300; 44.0% girls; Mage  = 44.70 months, SD = 4.38; 3.0% African American/Black, 7.6% Asian/Asian American/Pacific Islander, 1.0% Hispanic/Latinx, 11.3% multiracial, 62.1% White, and 15.0% missing/unknown). Observations of peer victimization and teacher report of peer rejection were collected at T1, and teacher report of aggression was collected at all time points. Results from piecewise latent growth models demonstrated that both forms of aggression decreased from T1 to T2 as children entered a new classroom and increased from T2 to T3 as they remained in that classroom. The increase in physical aggression from T2 to T3 was only significant for boys. Peer rejection at T1 emerged as a predictor of both intercepts and slopes from T1 to T2, and physical victimization predicted the physical aggression intercept and physical aggression slope from T1 to T2. Children high on these peer risk variables had higher initial levels of aggression, followed by a greater decrease in aggression from T1 to T2. Results underscore the importance of studying incremental change in aggression in early childhood and suggest that children who experience negative peer treatment have greater fluctuations in aggression over time.

The Role of Autonomic System Coordination in Relations Between Peer Factors and Aggressive Behavior in Early Childhood

This study tested biological sensitivity to context theory in the peer context. Respiratory sinus arrythmia (RSA-R) and skin conductance level (SCL-R) reactivity to a peer stressor were collected for participants (N = 86; M age = 45.99 months old; 70.2% White) in the summer (Time 1). Children's peer risk (i.e., physical and relational victimization) and protective (i.e., received prosocial behavior) factors were examined in the fall (T2) and relational and physical aggression were measured at T2 and in the spring (T3). Interactions were tested in regression analyses. Interactions emerged between relational victimization, RSA-R, and SCL-R in the prediction of T3 relational aggression and between received prosocial behavior, RSA-R, and SCL-R in the prediction of T3 relational and physical aggression, respectively. There was a positive relation between T2 relational victimization and T3 relational aggression for children with a coactivation pattern (i.e., increased RSA and SCL activity to a bullying stressor) but no relation for any other physiological pattern. Conversely, there was a negative relation between T2 received prosocial behavior and both forms of aggression at T3 for children with a reciprocal pattern (i.e., increased RSA and decreased SCL or decreased RSA and increased SCL activity) but no protective benefit of received prosocial behavior on subsequent aggression for children with a coactivation pattern. For children with a coinhibition pattern (i.e., decreased RSA and SCL activity), received prosocial behavior was negatively related to subsequent physical but not relational aggression. In sum, a coactivation pattern in response to stress may represent a vulnerability factor.

Autonomic nervous system reactivity and preschoolers' social dominance

The purpose of this study was to investigate the role of skin conductance level reactivity (SCLR) and respiratory sinus arrhythmia reactivity (RSAR) in preschoolers' social dominance, as well as potential gender differences in these associations. Reactivity was assessed in response to viewing videos of social exclusion and a post-aggression discussion. In a community sample of 94 preschool children followed over one calendar year, reactivity to the post-aggression discussion, but not exclusion, video was related to social dominance. Specifically, increased RSAR to the post-aggression discussion video was positively associated with concurrent social dominance for both boys and girls. Longitudinally, for boys only, coactivation (i.e., increases in SCLR accompanied by increases in RSAR) to the post-aggression discussion video, which may reflect dysregulated, emotionally labile reactions to stress, was associated with relatively low levels of social dominance across the course of the year. Overall, findings contribute to a growing literature documenting the role of autonomic reactivity in preschoolers' social adjustment and extend this work to their capacity to achieve and maintain socially dominant positions with peers.