面部印象的多维神经表示
John Andrew H Chwe1, Henna I Vartiainen2, Jonathan B Freeman3
1Department of Psychology, Columbia University, New York, New York 10027.
概括
关于可信度和主导地位的面部刻板印象被隐含地处理在中椎中 (MTG). 其他大脑区域,如关节 (TPJ) 和前叶 (ATL),当人们认可这些面部印象时,就会明确地参与其中.
科学领域:
- 认知神经科学 认知神经科学
- 社会心理学 社会心理学
- 神经成像是一种神经成像.
背景情况:
- 人们从脸上形成快速的特征印象,创造面部刻板印象,影响社会行为,尽管它们不准确.
- 行为研究表明,可信度和支配力是面部印象的关键维度,可能是由于进化压力.
研究的目的:
- 为了确定从面部外表衍生的二维特征表示 (可靠性和主导性) 的神经基础.
- 调查中圈 (MTG) 和其他社会大脑区域在隐式和显式面部印象形成中的作用.
主要方法:
- 利用人类神经成像 (fMRI) 对26名参与者 (19名女性,7名男性) 来分析大脑活动.
- 检查了中圈 (MTG) 和其他社会认知区域 (TPJ-pSTS,ATL) 的神经反应模式.
- 评估了神经相似性,可信度-主导空间和参与者对面部印象的明确认可之间的关系.
主要成果:
- 在双边中圈 (MTG) 中确定了面部的二维特征空间表示,与可信度和主导度相关.
- 这种MTG表示是自动的,参与者不变的,并且独立于对面部印象的明确信念.
- 时连接-后部上角 (TPJ-pSTS) 和前部叶 (ATL) 也显示了特征空间表示,但只有当参与者明确认可形成印象时.
结论:
- 中间旋 (MTG) 隐含地编码了面部的多维特征空间,反映了可信度和主导地位.
- 高层次的社会推理领域 (TPJ-pSTS) 和社会知识领域 (ATL) 参与了这些面部特征印象的明确应用.
- 研究结果揭示了明显的神经机制隐式和显式处理面部外表偏见.
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