神经相关结果显示了自发面部感知的不同阶段
Amanda K Robinson1,2,3, Greta Stuart4, Sophia M Shatek5,6
1School of Psychology, The University of Queensland, Brisbane, Australia. amanda.robinson@uqconnect.edu.au.
Communications psychology
|August 18, 2025
概括
人类大脑根据任务要求灵活地处理虚幻的面孔 (面部 pareidolia). 早期的视觉处理检测到类似面部特征,而后来的阶段将刺激归类为对象,解决感知模两可.
科学领域:
- 认知神经科学 认知神经科学
- 视觉感知 视觉感知 视觉感知
- 人类大脑功能 人类大脑功能
背景情况:
- 人类大脑表现出快速的面部检测,即使在非面部刺激 (面部pareidolia).
- 面部双面症呈现出一个悖论:大脑如何处理刺激,同时是面部和物体.
- 了解面部 pareidolia 处理的时间动态对于破译感知灵活性至关重要.
研究的目的:
- 通过行为和电脑图学方法研究面部pareidolia处理的时间动态.
- 确定任务需求如何影响虚幻面孔的感知和神经表示.
- 阐明大脑解决面部和物体刺激之间的感知模两可的机制.
主要方法:
- 结合行为实验 (相似性判断,分类,面部相似性评分) 与脑电图 (EEG).
- 利用了包括人类面孔,虚幻面孔的物体和控制对象在内的大型刺激集.
- 在早期 (90-130毫秒) 和晚期 (150-210毫秒) 视觉处理窗口中分析神经反应.
主要成果:
- 面部pareidolia的感知取决于任务:参与者将虚幻面部视为相似性判断中的中间体,但在分类任务中将其归类为对象.
- 显式评价面部相似性增强了面部相似特征的表现.
- 神经反应跟踪感知灵活性:早期的视觉处理与类似面部的判断相关,而后来的活动与对象分类保持一致.
结论:
- 大脑保持多个层次的表示,将早期面部检测与随后的对象识别整合在一起.
- 面部 pareidolia 处理是灵活的,并根据任务需求动态调节,表明大脑解决模两可的能力.
- 这种时间进度突出了竞争的表征是如何集成,以支持灵活的视觉感知和行为.
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