PDF(Pubmed)
Abstract：
Understanding others involves inferring traits and intentions, a process complicated by our reliance on stereotypes and generalized information when we lack personal information. Yet, as relationships are formed, we shift toward nuanced and individualized perceptions of others. This study addresses how relationship strength influences the creation of unique or normative representations of others in key regions known to be involved in social cognition. Employing a round-robin interpersonal perception paradigm (N = 111, 20 groups of five to six people), we used functional magnetic resonance imaging to examine whether the strength of social relationships modulated the degree to which multivoxel patterns of activity that represented a specific other were similar to a normative average of all others in the study. Behaviorally, stronger social relationships were associated with more normative trait endorsements. Neural findings reveal that closer relationships lead to more unique representations in the medial prefrontal cortex and anterior insula, areas associated with mentalizing and person perception. Conversely, more generalized representations emerge in posterior regions like the posterior cingulate cortex, indicating a complex interplay between individuated and generalized processing of social information in the brain. These findings suggest that cortical regions typically associated with social cognition may compute different kinds of information when representing the distinctiveness of others.
摘要：
理解他人涉及推断特征和意图，当我们缺乏个人信息时，我们对刻板印象和笼统信息的依赖使这一过程变得复杂。然而，随着关系的形成，我们转向对他人的细微差别和个性化的看法。这项研究探讨了关系强度如何影响在已知涉及社会认知的关键区域中他人的独特或规范表示的创建。采用循环人际感知范式（N=111，20组5-6人），我们使用功能磁共振成像(fMRI)来检查社会关系的强度是否调节了代表特定其他活动的多体素活动模式与研究中所有其他活动模式的标准平均值相似的程度.行为上,更强的社会关系与更规范的特质认可相关。神经研究结果表明，更紧密的关系导致内侧前额叶皮质和前脑岛更独特的表现，与心智化和人的感知相关的领域。相反，更广义的表示出现在后部区域，如后扣带皮质，表明大脑中社会信息的个性化和广义处理之间存在复杂的相互作用。这些发现表明，通常与社会认知相关的皮层区域在表示他人的独特性时可能会计算不同种类的信息。
