Does cognitive control mediate the relationship between peer presence and adolescent risk-taking? An ERP study

Area of Science:

• Neuroscience
• Developmental Psychology
• Cognitive Science

Background:

• Peer influence significantly shapes adolescent risk-taking behaviors.
• The dual system model posits distinct neural processes underlying adolescent decision-making.
• Understanding cognitive control mechanisms is crucial for explaining peer-mediated risk behavior.

Purpose of the Study:

• To investigate how peer presence, specifically a peer's risk preference, affects adolescent risk-taking.
• To examine the impact of peer presence on cognitive control processes (conflict monitoring and resolution) in emotional and non-emotional contexts.
• To elucidate the neural underpinnings of peer influence on adolescent decision-making using event-related potentials.

Main Methods:

• Employed event-related potentials (ERPs) to measure neural activity.
• Utilized the Stroop task (emotional and non-emotional versions) and the Balloon Analog Risk Task (BART).
• Recruited 106 adolescents (aged 17-19) and assessed behavior under three peer presence conditions.

Main Results:

• A risk-averse peer improved conflict monitoring (indicated by N200-diff) leading to safer decisions.
• A risk-preferring peer disrupted conflict resolution (indicated by N450-diff) leading to riskier decisions, specifically during the Emotional Stroop task.
• Peer influence on risk-taking was context-dependent, primarily affecting cognitive control in emotional scenarios.

Conclusions:

• Peer presence differentially modulates adolescent risk-taking by influencing cognitive control mechanisms.
• Emotional context plays a critical role in how peer influence impacts adolescent decision-making and neural responses.
• Findings highlight the nuanced effects of peer dynamics on adolescent behavior and cognitive processes.