集体编码与群众面部情绪个体表现之间的关系
Renhao Liu1, Qianjun Ye1, Shuang Hao1
1Research Center of Brain and Cognitive Neuroscience, Liaoning Normal University, Dalian 116029, China; Key Laboratory of Brain and Cognitive Neuroscience, Dalian 116029, China.
Biological psychology
|May 31, 2023
概括
随着暴露时间的增加,群体情绪处理从集体表现转向个人面部分析. 这种依赖时间的效应表明了我们的大脑是如何处理人群与单个个体的.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 社会感知的社会感知.
背景情况:
- 集体表达处理因其生态有效性而受到越来越多的关注.
- 对集体编码与个体表示的研究是新生的,有混合的行为发现.
- 现有的研究往往缺乏客观的神经测量.
研究的目的:
- 研究群众情绪的集体和个人表现之间的关系.
- 检查处理组与单个面部表情的时间依赖性.
- 使用脑电图 (EEG) 来补充行为数据.
主要方法:
- 行为实验 (实验1) 评估情绪判断准确性,用于单个和多个面孔.
- EEG实验 (实验2A和2B) 测量与事件相关的潜力 (ERP),特别是N2pc组件.
- 操纵刺激暴露时间以区分处理阶段.
主要成果:
- 在行为上,参与者在短时间暴露时使用多张脸更快,但在更长时间暴露时使用单张脸更快.
- 注意力选择的指标N2pc效应在短时间暴露时不受面部数的影响.
- 随着曝光时间的增加,N2pc效应随着面部数量的增加而增长,这表明处理中的转变.
结论:
- 这些发现支持面部表情视觉处理的时间依赖模型.
- 短时间的曝光时间有利于群众情绪的初始整体表现.
- 较长的曝光时间允许开发和优先考虑详细的个体表示.
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