外群同质感受是种族外群个体威胁普遍化的前体
Niclas Willscheid1, Florian Bublatzky1
1Central Institute of Mental Health, Medical Faculty Mannheim, Heidelberg University, Germany.
概括
种族分类影响威胁的概括. 与内部面孔相比,外组面孔的身份处理减少可能会先于普遍的威胁关联,这表明与外组同质感知有联系.
科学领域:
- 社会神经科学是一种社会神经科学.
- 认知心理学 认知心理学
- 人种感知 种族感知
背景情况:
- 个人经常认为外组成员比内组成员更具同质性.
- 这种感知可能会影响社会态度的普遍化和威胁的关联.
研究的目的:
- 调查潜在的威胁在种族外围群体的泛化的神经机制.
- 检查视觉相似性和身份处理在外组同质性中的作用.
- 为了确定早期的视觉处理差异是否能预测后来的威胁泛化.
主要方法:
- 与事件相关的电皮质活动 (EEG) 被记录在白人参与者看到白人和黑人的脸上.
- 参与者经历了一种威胁提示 (不愉快的电击),并与特定的内组或外组面孔配对.
- 适配器-目标面对对 (相同/不同的身份) 用于评估身份处理 (N170) 和威胁概括 (晚期积极潜力).
主要成果:
- 早期的视觉处理显示,对外组面孔的身份特异性处理减少 (N170重复抑制仅对内组身份敏感).
- 外组面孔的威胁概括性比内组面孔更强,由增强的后期积极潜力表明.
- 这些发现表明,早期的感知偏见与以后的威胁泛化之间存在相互作用.
结论:
- 外组的同质性可能源于外组面孔的早期身份处理减少.
- 这种感知偏见似乎是种族外围群体中普遍化威胁关联的早期前体.
- 神经证据支持种族外围群体的视觉感知与社会威胁概括之间的联系.
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