Risk-taking and social exclusion in adolescence: neural mechanisms underlying peer influences on decision-making.
Risk-taking and social exclusion in adolescence: neural mechanisms underlying peer influences on decision-making.
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DOI：
10.1016/j.neuroimage.2013.05.061
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发表时间：
2013-11-15
期刊：
影响因子：
5.7
通讯作者：
Pfeifer, Jennifer H.
中科院分区：
文献类型：
--
作者：
Peake, Shannon J.;Dishion, Thomas J.;Stormshak, Elizabeth A.;Moore, William E.;Pfeifer, Jennifer H.
社会排斥和冒险都是青春期常见的经历，但人们对两者在行为或神经层面上的关系知之甚少。在这项功能磁共振成像研究中，青少年（N=27，其中 14 名男性，14-17 岁）在扫描仪中完成了一系列任务，评估社会排斥前后的危险决策。在这种特殊背景下，自我报告的对同伴影响（RPI）抵抗力较低的青少年中，排斥与更大的行为冒险行为相关。在社会排斥后做出危险决定时，RPI 较低的青少年右侧颞顶交界处 (rTPJ) 的活动水平较高，而 rTPJ 的这种反应是 RPI 与社会排斥后更大风险之间关系的重要中介因素。较低的 RPI 还与社会排斥后崩溃期间 lPFC 的较低活动水平相关，但与 rTPJ 不同，lPFC 的这种反应并不是 RPI 与社会排斥后更大风险之间关系的重要中介因素。结果表明，心理化和/或注意力机制对青少年在冒险行为中受到同伴影响的脆弱性具有独特的直接影响。
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 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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DOI：
10.1111/j.1532-7795.2010.00712.x
发表时间：
2011-03-01
期刊：
Journal of research on adolescence : the official journal of the Society for Research on Adolescence
影响因子：
--
作者：
Casey B;Jones RM;Somerville LH
通讯作者：
Somerville LH
影响因子：
5.3
作者：
Bjork, JM;Knutson, B;Hommer, DW
通讯作者：
Hommer, DW
影响因子：
3.3
作者：
DISHION, TJ;CAPALDI, D;LI, FZ
通讯作者：
LI, FZ
影响因子：
3.2
作者：
D'Argembeau, Arnaud;Ruby, Perrine;Salmon, Eric
通讯作者：
Salmon, Eric
影响因子：
4.3
作者：
Boyes, Mark E.;French, Davina J.
通讯作者：
French, Davina J.