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首页> 外文期刊>Neuropsychologia >Evaluative vs. trait representation in intergroup social judgments: Distinct roles of anterior temporal lobe and prefrontal cortex
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Evaluative vs. trait representation in intergroup social judgments: Distinct roles of anterior temporal lobe and prefrontal cortex

机译：群体间社会判断中的评价与特质表征：前颞叶和前额叶皮层的不同作用

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摘要

When interacting with someone from another social group, one's responses may be influenced by both stereotypes and evaluations. Given behavioral results suggesting that stereotypes and evaluative associations operate independently, we used fMRI to test whether these biases are mediated by distinct brain systems. White participants viewed pairs of Black or White faces and judged them based on an evaluation (who would you befriend?) or a stereotype-relevant trait (who is more likely to enjoy athletic activities?). Multi-voxel pattern analysis revealed that a predominantly occipital network represented race in a context-invariant manner. However, lateral orbitofrontal cortex preferentially represented race during friendship judgments, whereas anterior medial prefrontal cortex preferentially represented race during trait judgments. Furthermore, representation of race in left temporal pole correlated with a behavioral measure of evaluative bias during friendship judgments and, independently, a measure of stereotyping during trait judgments. Whereas early sensory regions represent race in an apparently invariant manner, representations in higher-level regions are multi-componential and context-dependent.
机译：与来自另一个社交团体的某人互动时，一个人的反应可能会受到刻板印象和评估的影响。给定的行为结果表明刻板印象和评估联想独立运作，我们使用功能磁共振成像来测试这些偏见是否由不同的大脑系统介导。白人参与者查看了成对的黑色或白色面孔，并根据评估（您愿意与谁成为朋友）或与定型观念有关的特征（与谁更可能从事体育活动？）做出判断。多体素模式分析显示，枕骨网络以上下文不变的方式代表种族。然而，在友谊判断中，外侧眶额皮质优先代表种族，而在特征判断时，内侧前额叶皮质优先代表种族。此外，左颞极种族的表征与友谊判断中行为偏见的行为测度相关，并且与特质判断中的定型观念相关。早期的感觉区域以明显的不变方式表示种族，而较高级别区域的表示则是多成分的且取决于上下文。

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