语境不确定性对面部表情处理的影响:来自行为和ERP的证据
Xinchao Yang1, Weihan Wang1, Mingkui Yang1
1Department and Institute of Psychology, Ningbo University, Ningbo 315211, China.
Biological psychology
|September 18, 2024
概括
背景不确定性对我们如何感知面部情绪产生负面影响,使中性面部看起来更负面. 这种大脑处理被可预测性变化所改变,影响了情绪反应.
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
- 情感神经科学是一种神经科学.
背景情况:
- 大脑使用情绪预测来处理社交互动中的面孔.
- 准确预测情绪是因为环境复杂而具有挑战性的.
- 背景不确定性,以不可预测性为标志,加剧了情绪和焦虑.
研究的目的:
- 调查语境不确定性如何影响面部表情处理.
- 检查预测关系中的动态变化对情绪感知的影响.
主要方法:
- 使用事件相关潜力 (ERP) 技术.
- 采用了新的S1-S2范式,使用场景图像 (S1) 和面孔 (S2).
- 操纵不确定性通过比较一个确定到不确定 (CER到UNC) 组与一个不确定到确定 (UNC到CER) 组.
主要成果:
- 在CER到UNC组中,行为数据显示中性面孔的负价值评分更高.
- 在UNC到CER组中,ERP数据显示了更多负面刺激前的负面性 (SPN) 幅度.
- 与CER对UNC组相比,ERP数据在UNC对CER组中显示出更积极的晚期正潜力 (LPP) 幅度.
结论:
- 背景不确定性显著影响面部表情的处理.
- 与增加的不确定性 (CER到UNC) 相比,减少的不确定性 (UNC到CER) 与不同的神经反应 (SPN,LPP) 有关.
- 这些发现增强了对预测和不确定性如何塑造情绪感知和社会认知的理解.
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