平行处理明显的面部信号,以快速评估社会代理人
Zihe Wei1, Amanda K Robinson1, Alan J Pegna1
1School of Psychology, The University of Queensland, St Lucia, QLD, Australia.
iScience
|March 9, 2026
概括
大脑通过单独的神经通路处理面部情绪和性行为. 情绪暗示比性暗示更早被解码,支持面部感知分布式模型.
科学领域:
- 神经科学是一个神经科学.
- 认知心理学 认知心理学
- 视觉科学科学 视觉科学
背景情况:
- 灵长类动物面部感知分布式模型表明,单独的神经机制处理不同的面部信号,如情绪和性.
- 一个关键的预测是,这些信号在不同的处理阶段被提取出来.
研究的目的:
- 测试分布式模型对面部情绪和性别的差异化处理阶段的预测.
- 研究从大脑活动中解码情绪价值和感知性行为的时间动态.
主要方法:
- 收集了900个自然主义面孔的情感价值和性行为的行为评分.
- 从40名参与者被动观看这些面孔获得了电生理学记录.
- 使用时间解析解码和表示相似性分析来分析大脑活动模式.
主要成果:
- 大脑可靠地从短暂的视觉刺激 (低于95毫秒) 中区分情感价值和感知性.
- 对情感价值的峰值解码发生的时间比对感知性更早.
- 时间解析分析证实了这些处理的时间差异.
结论:
- 这些发现支持可分离的神经处理管道,用于可变的 (情绪) 和稳定的 (性别) 面部信号.
- 为面部感知分布式模型提供经验证据.
- 突出了处理面部基本特征的独特时间动态.
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