TY - JOUR
T1 - Risk-taking and social exclusion in adolescence
T2 - Neural mechanisms underlying peer influences on decision-making
AU - Peake, Shannon J.
AU - Dishion, Thomas J.
AU - Stormshak, Elizabeth A.
AU - Moore, William E.
AU - Pfeifer, Jennifer H.
N1 - Funding Information:
Support for this project was provided by the National Institute on Drug Abuse to the Center on Early Adolescence ( DA018760 , Tony Biglan, Oregon Research Institute, PI) and the NIMH Development, Emotion, Ecology, and Psychopathology Research Training grant to S.A.P. ( 5T32-MH20012 , Elizabeth A. Stormshak, University of Oregon, Child and Family Center and College of Education, PI). Special thanks are due to Lauren Kahn and the University of Oregon Developmental Social Neuroscience lab. Magnetic resonance imaging was performed at the Robert and Beverly Lewis Center for Neuroimaging at the University of Oregon.
PY - 2013/11/5
Y1 - 2013/11/5
N2 - Social exclusion and risk-taking are both common experiences of concern in adolescence, yet little is known about how the two may be related at behavioral or neural levels. In this fMRI study, adolescents (N. =. 27, 14 male, 14-17. years-old) completed a series of tasks in the scanner assessing risky decision-making before and after an episode of social exclusion. In this particular context, exclusion was associated with greater behavioral risk-taking among adolescents with low self-reported resistance to peer influence (RPI). When making risky decisions after social exclusion, adolescents who had lower RPI exhibited higher levels of activity in the right temporoparietal junction (rTPJ), and this response in rTPJ was a significant mediator of the relationship between RPI and greater risk-taking after social exclusion. Lower RPI was also associated with lower levels of activity in lPFC during crashes following social exclusion, but unlike rTPJ this response in lPFC was not a significant mediator of the relationship between RPI and greater risk-taking after social exclusion. The results suggest that mentalizing and/or attentional mechanisms have a unique direct effect on adolescents' vulnerability to peer influence on risk-taking.
AB - Social exclusion and risk-taking are both common experiences of concern in adolescence, yet little is known about how the two may be related at behavioral or neural levels. In this fMRI study, adolescents (N. =. 27, 14 male, 14-17. years-old) completed a series of tasks in the scanner assessing risky decision-making before and after an episode of social exclusion. In this particular context, exclusion was associated with greater behavioral risk-taking among adolescents with low self-reported resistance to peer influence (RPI). When making risky decisions after social exclusion, adolescents who had lower RPI exhibited higher levels of activity in the right temporoparietal junction (rTPJ), and this response in rTPJ was a significant mediator of the relationship between RPI and greater risk-taking after social exclusion. Lower RPI was also associated with lower levels of activity in lPFC during crashes following social exclusion, but unlike rTPJ this response in lPFC was not a significant mediator of the relationship between RPI and greater risk-taking after social exclusion. The results suggest that mentalizing and/or attentional mechanisms have a unique direct effect on adolescents' vulnerability to peer influence on risk-taking.
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U2 - 10.1016/j.neuroimage.2013.05.061
DO - 10.1016/j.neuroimage.2013.05.061
M3 - Article
C2 - 23707590
AN - SCOPUS:84879738099
SN - 1053-8119
VL - 82
SP - 23
EP - 34
JO - NeuroImage
JF - NeuroImage
ER -