对种族和隐性偏见对面部表情处理的影响的EEG评估
Amélie Roberge1, Justin Duncan2, Daniel Fiset2
1Département de psychologie, Université du Québec à Trois-Rivières, C.P. 500 Trois-Rivières, Québec G9A 5H7, Canada.
Social cognitive and affective neuroscience
|March 4, 2025
概括
种族偏见,而不是种族本身,影响面部表情处理. 对黑人个人的负面态度放大了对白人的情感反应,特别是在后来的认知阶段.
科学领域:
- 认知心理学 认知心理学
- 社会神经科学 社会神经科学
- 心理生理学 心理生理学
背景情况:
- 面部表情处理通常对自己种族的面部更有效.
- 隐含的种族偏见可能会影响这些自己的种族优势.
- 了解面部表情处理的阶段至关重要.
研究的目的:
- 调查种族和隐含的种族偏见对自动和非自动面部表情处理的影响.
- 区分注意力和种族态度在处理自己的种族与其他种族面部表情中的作用.
主要方法:
- 头皮脑电图 (EEG) 用于记录大脑活动.
- 参与者完成了心理耐火期 (PRP) 双任务模式.
- 白色和黑色的面孔展示了中立或恐惧的表情.
主要成果:
- 早期的感知处理 (N170) 没有受到种族或种族态度的影响.
- 后来的情感内容评估 (Late Positive Potential - LPP) 取决于注意力资源.
- 对黑人个人的负面态度放大了LPP对白人的反应.
结论:
- 种族偏见,特别是对黑人人的负面态度,显著影响了面部表情处理的后期阶段.
- 种族偏见的影响在语义评估中表现出来,而不是早期的感知.
- 隐含的偏见在调节对面孔的情感反应方面,比单独的种族发挥更为关键的作用.
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