Although peer influence is a strong predictor of adolescents' risk-taking behaviors, not all adolescents are susceptible to their peer group. One hundred and thirty-six adolescents (M age = 12.79 years) completed an fMRI scan, measures of perceived peer group norms, and engagement in risky behavior. Ventral striatum (VS) sensitivity when anticipating social rewards and avoiding social punishments significantly moderated the association between perceived peer norms and adolescents' own risk behaviors. Perceptions of more deviant peer norms were associated with increased risky behavior, but only for adolescents with high VS sensitivity; adolescents with low VS sensitivity were resilient to deviant peer norms, showing low risk taking regardless of peer context. Findings provide a novel contribution to the study of peer influence susceptibility.

Despite growing research on neurobiological development, little attention has been paid to cultural and ethnic variation in neurodevelopmental processes. We present an overview of the current state of developmental cognitive neuroscience with respect to its attention to cultural issues. Analyses based on 80 publications represented in five recent meta-analyses related to adolescent developmental neuroscience show that 99% of the publications used samples in Western countries. Only 22% of studies provided a detailed description of participants’ racial/ethnic background, and only 18% provided for socioeconomic status. Results reveal a trend in developmental cognitive neuroscience research: The body of research is derived not only mostly from Western samples but also from participants whose race/ethnicity is unknown. To achieve a holistic perspective on brain development in different cultural contexts, we propose and highlight an emerging interdisciplinary approach—developmental cultural neuroscience—the intersection of developmental psychology, cultural psychology, and cognitive neuroscience. Developmental cultural neuroscience aims to elucidate cultural similarities and differences in neural processing across the life span. We call attention to the importance of incorporating culture into the empirical investigation of neurodevelopment.

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There is growing evidence that motivations reflecting social withdrawal are linked to various correlates and outcomes in childhood, adolescence, and emerging adulthood. However, little work has examined the subtypes of withdrawn motivations in early adulthood. Hence, the purpose of this study was to compare shy, avoidant, unsocial, mixed‐withdrawn, and non‐withdrawn men and women in early adulthood on indices of well‐being. This study drew on a large, representative U.S. sample of 5,000 participants (2,930 female) ages 30–35 (Mage = 32.50, SD = 1.70). Findings reveal that shy, avoidant, and mixed‐withdrawal individuals experience more negative outcomes (e.g., receiving less education) and lower well‐being (e.g., lower life satisfaction, more internalizing problems, and regret) in early adulthood.

Highlights We examined brain function during anticipation of social reward and punishment. Neural sensitivity reflected increased susceptibility to negative family contexts. For youth high in sensitivity, family conflict predicted externalizing behavior.