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Neural Representations of Belief Concepts: A Representational Similarity Approach to Social Semantics

机译：信仰概念的神经表示：社会语义的代表性相似性方法

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摘要

The present experiment identified neural regions that represent a class of concepts that are independent of perceptual or sensory attributes. During functional magnetic resonance imaging scanning, participants viewed names of social groups (e.g. Atheists, Evangelicals, and Economists) and performed a one-back similarity judgment according to 1 of 2 dimensions of belief attributes: political orientation (Liberal to Conservative) or spiritualism (Spiritualist to Materialist). By generalizing across a wide variety of social groups that possess these beliefs, these attribute concepts did not coincide with any specific sensory quality, allowing us to target conceptual, rather than perceptual, representations. Multi-voxel pattern searchlight analysis was used to identify regions in which activation patterns distinguished the 2 ends of both dimensions: Conservative from Liberal social groups when participants focused on the political orientation dimension, and spiritual from Materialist groups when participants focused on the spiritualism dimension. A cluster in right precuneus exhibited such a pattern, indicating that it carries information about belief-attribute concepts and forms part of semantic memory-perhaps a component particularly concerned with psychological traits. This region did not overlap with the theory of mind network, which engaged nearby, but distinct, parts of precuneus. These findings have implications for the neural organization of conceptual knowledge, especially the understanding of social groups.
机译：本实验确定了神经区域，代表了一类独立于感知或感官属性的概念。在功能磁共振成像扫描期间，参与者观看了社会群体的名称（例如无神论者，福音派和经济学家），并根据信仰属性的2个维度中的1个方面进行了一个背面相似性判断：政治定位（自由于保守）或精神主义（精神主义唯物主义）。通过横跨拥有这些信仰的各种社会群体，这些属性概念并不符合任何特定的感官质量，使我们允许我们概念，而不是感知的表现。多体素图案探照灯分析用于识别激活模式的区域，其中激活模式区分两个尺寸的2个末端：当参与者专注于政治定位维度的参与者时，在参与者专注于精神主义维度时，从自由主义社会群体中保守。正确的预防群体展示了这种模式，表明它带来了关于信仰属性概念的信息，并形成了语义记忆的一部分 - 或许是特别关注心理特征的组成部分。该地区与在附近的思维网络的理论中没有重叠，这是一个截然不同的前部的前部。这些调查结果对神经组织的概念知识有影响，尤其是对社会群体的理解。

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