Susceptibility to peer influence in adolescents: Associations between psychophysiology and behavior.

The current study investigated in-the-moment links between adolescents' autonomic nervous system activity and susceptibility to three types of peer influence (indirect, direct, continuing) on two types of behavior (antisocial, prosocial). The sample included 144 racially ethnically diverse adolescents (46% male, 53% female, 1% other; M age  = 16.02 years). We assessed susceptibility to peer influence behaviorally using the Public Goods Game (PGG) while measuring adolescents' mean heart rate (MHR) and pre-ejection period (PEP). Three key findings emerged from bivariate dual latent change score modeling: (1) adolescents whose MHR increased more as they transitioned from playing the PGG alone (pre-influence) to playing while simply observed by peers (indirect influence) displayed more prosocial behavior; (2) adolescents whose PEP activity increased more (greater PEP activity = shorter PEP latency) as they transitioned from indirect influence to being encouraged by peers to engage in antisocial behavior (direct influence) engaged in more antisocial behavior; and (3) adolescents whose PEP activity decreased less as they transitioned from direct influence on prosocial behavior to playing the PGG alone again (continuing influence) displayed more continuing prosocial behavior (marginal effect). The discussion focuses on the role of psychophysiology in understanding adolescents' susceptibility to peer influence.

Pre-Pandemic Peer Relations Predict Adolescents' Internalizing Response to Covid-19.

The goal of the current longitudinal study was to investigate the role of adolescents' peer victimization and aggression prior to COVID-19 on the change in their depressive and anxious symptoms from pre- to mid-pandemic. We hypothesized that, although adolescents overall would display an increase in internalizing symptoms from pre- to mid-pandemic, this response would be weakened or perhaps even reversed when adolescents experienced high levels of victimization or aggression prior to the pandemic. Participants included 96 racially/ethnically diverse adolescents (42 males, 53 females; 1 other) with an average age of 16.79 years (SD = 0.60). At Time 1 (T1; June 2019 through February 2020; pre-pandemic), adolescents completed self-report measures of their peer relations (aggression, victimization) and internalizing symptoms (depressive, anxious). At Time 2 (T2; May through July 2020; mid-pandemic), adolescents completed self-report measures of their internalizing symptoms (depressive, anxious). On average, adolescents' anxious and depressive symptoms increased from T1 to T2, although they exhibited substantial variability, with reports ranging from decreasing symptoms to increasing symptoms. Although on average adolescents reported increases in anxious symptoms from T1 to T2, adolescents with higher T1 peer victimization reported less positive change in anxious symptoms. Similarly, although on average adolescents reported increases in depressive symptoms from T1 to T2, adolescents with higher levels of T1 aggression reported less positive change in depressive symptoms from T1 to T2. Discussion focused on restrictions on in-person peer interactions necessitated by COVID-19 that may reduce adolescents' distress when their pre-pandemic daily lives were characterized by negative peer relations.

Validation of the Social Information Processing Application (SIP-AP) across genders, socioeconomic levels, and forms of aggression.

The goals of the current study were to (a) replicate the factor structure of the Social Information Processing Application (SIP-AP), (b) evaluate the measurement invariance of the SIP-AP across genders, socioeconomic (SES) levels, and forms of aggression, and (c) assess the convergent validity of the SIP-AP through associations with aggression, social competence, and rule-breaking behavior. Participants were 189 racially/ethnically diverse children (53% male; Mage = 8.50 years) who completed the SIP-AP. Parents reported on children's aggression and social competence, children reported on their aggression, and we observed children's rule-breaking behavior. A five-factor model including Hostile Cue Interpretations, Aggressive Goals, Aggressive Responses, Aggressive Response Evaluations, and Prosocial SIP replicated in this sample. The model was invariant across genders, SES levels, and forms of aggression (physical, relational, covert, property destruction). Girls reported more Aggressive Goals than boys. Children from more economically disadvantaged families reported higher levels of Hostile Cue Interpretations, Aggressive Goals, and Aggressive Response Evaluations. Aggression was related to all SIP constructs in expected directions, social competence was negatively associated with Hostile Cue Interpretations, and rule-breaking behavior was positively linked to Aggressive Goals, Aggressive Responses, and Aggressive Response Evaluations. Results are discussed in terms of the psychometric strengths of the SIP-AP. (PsycInfo Database Record (c) 2021 APA, all rights reserved).

Levels and Instability of Daily Self-Esteem in Adolescents: Relations to Depressive and Anxious Symptoms.

The current study examined whether individual differences in depressive and anxious symptoms relate to level of daily self-esteem and instability of daily self-esteem in adolescence. Participants were a racially and ethnically diverse sample of adolescents (79 girls, 65 boys; M age = 13.53 years). Adolescents reported on their depressive and anxious symptoms during a baseline home visit. Then, adolescents reported on their daily self-esteem over the course of 12 consecutive days. Using hierarchical linear modeling analyses, level of daily self-esteem was negatively associated with depressive but not anxious symptoms. In addition, a positive relation emerged between instability of daily self-esteem and depressive symptoms when controlling for level of self-esteem; a similar relation did not emerge for anxious symptoms. The differential findings that emerged between both level and instability of daily self-esteem and depressive versus anxious symptoms may be linked to differences in the temporal orientation of these two types of internalizing symptoms; specifically, depressive symptoms result from backward-looking rumination over previous experiences, whereas anxious symptoms emerge from forward-looking worry about future events (Wenze et al., 2012).

Relations between Reactive and Proactive Aggression and Daily Emotions in Adolescents.

The current study examined whether individual differences in reactive and proactive aggression: 1) relate to level of daily emotion, including happiness, sadness, anger, and fear, 2) predict across-day variability in these emotions, and 3) moderate reactivity of these emotions to positive and negative events. Participants were a racially/ethnically diverse sample of 144 adolescents (80 girls, 64 boys; M age = 13.55 years; SD = 1.34). Adolescents self-reported on reactive and proactive aggression in a home visit prior to the collection of daily data. Using daily dairy procedures, adolescents then reported on their daily emotions and positive/negative events over 12 consecutive days. Higher reactive aggression was associated with greater levels of daily anger, more variability in anger across days, and heightened angry reactivity to negative events. Additionally, higher reactive aggression predicted lower levels of daily happiness but greater happy reactivity to positive events. Finally, higher reactive aggression was linked to increased variability in daily fear. In contrast, proactive aggression was largely unrelated to adolescents' daily emotions, with the exception that higher proactive aggression predicted less variability in happiness across days. Results indicate that reactive aggression is characterized by significant emotionality at the daily level, and proactive aggression is characterized by lack of emotionality.

Childhood adversity moderates the influence of proximal episodic stress on the cortisol awakening response and depressive symptoms in adolescents.

Childhood adversity (CA) is known to predict sensitization to proximal stressors. Researchers have suggested that disruptions in hypothalamus-pituitary-adrenal axis functioning may be a biological mechanism. If so, CA may predict altered associations between proximal life stress and markers of cortisol secretion. We examined whether CA moderates associations between recent episodic stress and (a) the cortisol awakening response (CAR), and (b) depressive symptoms, in 241 adolescents aged 14-17 years (cortisol n = 196). Salivary cortisol was sampled at 0, 30, and 60 min postawakening for 2 days. The CAR was calculated as the area under the curve with respect to increase and waking cortisol. CA and episodic stress were assessed using contextual-threat-method-coded objective interviews. CA significantly interacted with episodic stress to predict both the CAR and depression. Among those with low CA, episodic stress predicted increased CAR but did not predict depression. For adolescents with high CA, episodic stress predicted lower CAR and higher depression. These interactions were found only for independent (uncontrollable, fateful) events, and not for dependent (self-generated) stress. Increased allostatic load resulting from CA exposure may interfere with adolescents' ability to optimally regulate their CAR in relation to recent stress, contributing to increased depression risk.