面部帕雷多利亚极小地参与的面部选择性神经元
Kenji W Koyano1, Jessica Taubert2, William Robison1
1Section on Cognitive Neurophysiology and Imaging, Systems Neurodevelopment Laboratory, National Institute of Mental Health, Bethesda, MD, USA.
Progress in neurobiology
|January 4, 2025
概括
大脑中的神经回路不会将虚幻的面孔 (面孔 pareidolia) 优先于日常物体. 面部选择性区域主要对真实面部做出反应,而不是巧合地与之相似的物体.
科学领域:
- 神经科学是一个神经科学.
- 灵长类的认知能力
- 视觉处理 视觉处理
背景情况:
- 大脑皮层有专门的"面部贴片"来处理面部信息.
- 这些面部补丁的精确调整特性,特别是关于虚幻面部的,仍然不清楚.
研究的目的:
- 为了研究fMRI定义的面部选择性区域的神经元是否对面部双面膜刺激做出反应.
- 为了比较神经反应对真实面孔, pareidolia 唤起对象,和控制对象.
主要方法:
- 从四个面部选择性区域记录了单个单元的活动:前中部 (AM),前底部 (AF),前额外轨道 (PO) 和周围皮质 (PRh).
- 呈现的子对象与真实子面部的图像,唤起面部pareidolia的对象,并匹配控制对象.
主要成果:
- 在测试的脸部贴片中,没有发现对象在对照对象上引起pareidolia的一般偏好.
- 虽然一些神经元对pareidolia刺激做出了更大的反应,但总体来说,人群反应与对照对象相似,并且明显低于对真实面孔的反应.
结论:
- 这四个面部斑块中的神经活动主要是针对现实的面部特征.
- 在pareidolia中对面部类似刺激的高度注意力很可能是由这些特定面部补丁之外的大脑区域调解的.
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