当整体只是部分时:非整体的对象部分占主导地位,面部细胞对虚幻面部的反应占主导地位
Saloni Sharma1, Kasper Vinken1, Margaret S Livingstone1
1Department of Neurobiology, Harvard Medical School, Boston, MA 02115.
bioRxiv : the preprint server for biology
|October 4, 2023
概括
面部帕雷多利亚,看到面部的幻觉,与专门的脑细胞有关. 然而,这些细胞对简单的特征做出反应,而不是整体的面孔,挑战神经科学中的人类感知偏见.
科学领域:
- 神经科学是一个神经科学.
- 认知科学 认知科学
- 视觉感知 视觉感知 视觉感知
背景情况:
- 人们经常在非面部对象中感知面部 (面部 pareidolia).
- 这种现象经常与灵长类大脑中的特殊"面部细胞"有关.
- 现有的理论表明,这些细胞需要整体的,类似面部的配置来激活.
研究的目的:
- 为了研究的下皮质中面部细胞的激活模式.
- 为了确定面部细胞的选择性是否依赖于整体配置或特定特征.
- 检查面部细胞反应是否与人类的"面貌"评分相关.
主要方法:
- 从的下皮质中的面部细胞的电生理学记录.
- 呈现图像的脸型配置 (pareidolia图像) 和孤立的物体部分.
- 神经选择性和特征驱动反应的分析.
主要成果:
- 面部细胞对pareidolia图像表现出选择性的反应.
- 选择性并不依赖于整体面部配置.
- 响应主要是由孤立的物体部分驱动的,在上下文中被认为是"眼睛",而不是类似人类的面部特征.
结论:
- 面部细胞反应主要由局部,通用特征主导,而不是整体的面部信息.
- 这挑战了人类感知偏差对神经活动的直接映射.
- 解释神经数据需要谨慎,以避免强加人类特定的感知框架.
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