青少年同伴网络中的接近性预测情感体验中的神经相似性

Mallory J Feldman, Jimmy Capella, Junqiang Dai, Adrienne S Bonar, Nathan H Field, Kevin Lewis, Mitchell J Prinstein, Eva H Telzer, Kristen A Lindquist
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引用次数: 0

摘要

个人会结交与自己相似的人。人际关系中相似性的一个重要来源是情感上的相似性。在本研究中,我们使用了新颖的方法来评估情感刺激的多象素大脑表征的更大相似性是否与青少年在真实世界中基于学校的社交网络中的亲近程度有关。我们研究了与情感表征相关的一组脑区(包括腹内侧前额叶皮层(vmPFC)、杏仁核、脑岛和颞极)内的配对水平神经相似性。在愉快体验和中性体验中,更近的距离与更大的 vmPFC 神经相似性相关。此外,我们利用社交网络的无监督聚类来识别朋友群体,并观察到来自相同(相对于不同)朋友群体的个体在愉快和消极体验中更有可能具有更高的vmPFC神经相似性。这些研究结果表明,大脑多象素情感表征的相似性可能在青少年友谊中扮演着重要角色。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Proximity within adolescent peer networks predicts neural similarity during affective experience.

Individuals befriend others who are similar to them. One important source of similarity in relationships is similarity in felt emotion. In the present study, we used novel methods to assess whether greater similarity in the multivoxel brain representation of affective stimuli was associated with adolescents' proximity within real-world school-based social networks. We examined dyad-level neural similarity within a set of brain regions associated with the representation of affect including the ventromedial prefrontal cortex (vmPFC), amygdala, insula, and temporal pole. Greater proximity was associated with greater vmPFC neural similarity during pleasant and neutral experiences. Moreover, we used unsupervised clustering on social networks to identify groups of friends and observed that individuals from the same (versus different) friend groups were more likely to have greater vmPFC neural similarity during pleasant and negative experiences. These findings suggest that similarity in the multivoxel brain representation of affect may play an important role in adolescent friendships.

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