Neural similarity in nucleus accumbens during decision-making for the self and a best friend: Links to adolescents' self-reported susceptibility to peer influence and risk taking.
Neural similarity in nucleus accumbens during decision-making for the self and a best friend: Links to adolescents' self-reported susceptibility to peer influence and risk taking.
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DOI：
10.1002/hbm.26317
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发表时间：
2023-07
影响因子：
4.8
通讯作者：
Lindquist, Kristen A.
中科院分区：
文献类型：
--
作者：
Dai, Junqiang;Kwon, Seh-Joo;Prinstein, Mitchell J.;Telzer, Eva H.;Lindquist, Kristen A.
关键词：
青春期的特点是同伴对冒险行为的影响增加；然而，最近的文献表明，同伴对冒险行为的易感性存在巨大的个体差异。本研究使用表征相似性分析来检验危险情境中自我和同伴(即最好的朋友)决策之间的神经相似性是否与青少年自我报告的同伴影响敏感度和危险行为的个体差异有关。青少年参与者(N = 166岁，M年龄 = 12.89岁)完成了一项神经成像任务，在这项任务中，他们做出了风险决定，以获得对自己、最好的朋友和父母的奖励。青少年参与者自我报告的同伴影响风险行为的易感性和参与度。我们发现，自我和最好的朋友在伏隔核(NACC)反应模式上有更大的相似性的青少年报告更容易受到同伴的影响，冒险行为增加。然而，腹内侧额叶皮质(VmPFC)的神经相似性与青少年的同伴影响敏感度和冒险行为之间没有显著的关联。此外，当在NACC和vmPFC中检查青少年自我和父母之间的神经相似性时，我们没有发现与同伴影响易感性和冒险行为之间的联系。综上所述，我们的结果表明，在NACC中，自我和朋友的相似性与青少年同伴影响敏感度和冒险行为的个体差异有关。这项研究发现，在为自己和最好的朋友做决定时，伏隔核反应模式更相似的青少年报告更容易受到同伴的影响，并在日常生活中增加冒险行为。我们的结果表明，奖励系统中自我和同龄人的神经相似性越大，可能表明同龄人在青春期影响易感性和冒险行为。这项研究可能会为识别高危青少年提供有价值的信息，并为未来的预防和干预计划提供参考。
Adolescence is marked by increased peer influence on risk taking; however, recent literature suggests enormous individual variation in peer influence susceptibility to risk‐taking behaviors. The current study uses representation similarity analysis to test whether neural similarity between decision‐making for self and peers (i.e., best friends) in a risky context is associated with individual differences in self‐reported peer influence susceptibility and risky behaviors in adolescents. Adolescent participants (N = 166, M age = 12.89) completed a neuroimaging task in which they made risky decisions to receive rewards for themselves, their best friend, and their parents. Adolescent participants self‐reported peer influence susceptibility and engagement in risk‐taking behaviors. We found that adolescents with greater similarity in nucleus accumbens (NACC) response patterns between the self and their best friend reported greater susceptibility to peer influence and increased risk‐taking behaviors. However, neural similarity in ventromedial prefrontal cortex (vmPFC) was not significantly associated with adolescents' peer influence susceptibility and risk‐taking behaviors. Further, when examining neural similarity between adolescents' self and their parent in the NACC and vmPFC, we did not find links to peer influence susceptibility and risk‐taking behaviors. Together, our results suggest that greater similarity for self and friend in the NACC is associated with individual differences in adolescents' peer influence susceptibility and risk‐taking behaviors. This research found that adolescents with greater similarity in nucleus accumbens response patterns when making decisions for themselves and a best friend reported greater susceptibility to peer influences and increased risk‐taking behaviors in daily life. Our result suggests that greater neural similarity for the self and peers in the reward system may index peer influence susceptibility and risk‐taking behaviors during adolescence. This study may provide valuable information for identifying at‐risk youths and shed light on future prevention and intervention programs.
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