群体成员身份和刻板印象内容共同影响在资源分配决策期间的神经处理.
Paloma Diaz-Gutierrez1, Christophe Boone2, Harshil G Vyas2
1Faculty of Business and Economics, Universiteit Antwerpen, Antwerp, Belgium. paloma.diazgutierrez@uantwerpen.be.
Scientific reports
|November 7, 2025
概括
刻板印象和团体成员身份影响决策. 大脑成像显示,虽然群体归属是早期处理的,但刻板印象影响后来的决策,认知控制减轻了偏见.
科学领域:
- 神经科学是一个神经科学.
- 社会心理学 社会心理学
- 认知科学 认知科学
背景情况:
- 刻板印象和内/外群分类塑造了判断和决策.
- 刻板印象是学习的概括,而群体类别定义了归属安全.
- 不同的神经机制是这些过程及其相互作用的基础.
研究的目的:
- 使用神经成像来区分刻板印象和群体成员的功能.
- 研究这些过程的神经相关性及其对行为偏差的影响.
- 探索外部群体如何调节刻板印象的推理.
主要方法:
- 功能性磁共振成像 (fMRI) 在分钱任务期间.
- 参与者与刻板印象的群体内和群体外成员共享金钱.
- 进行了全脑单变量和兴趣区域 (ROI) 多变量模式分析.
主要成果:
- 寒冷的刻板印象激活了杏仁体,前侧胰岛和前侧环状皮层 (ACC).
- ACC激活预测与冷外组成员的共享减少;右侧前额叶皮质 (rLPFC) 显示了缓解作用.
- 轨道前皮层代表了群体和刻板印象,外部群体放大了特征不相似性.
结论:
- 外部群体作为刻板印象推理的调节者,潜在地使判断两极分化.
- 关于群体成员的神经表征发生在早期,而刻板印象则在决策过程中被整合起来.
- 行为偏见最终取决于个人的认知控制机制.
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