偏好更靠近眼睛的看法与不变位置的面部神经代码有关
Puneeth N Chakravarthula1,2, Miguel P Eckstein3
1Psychological and Brain Science, University of California, Santa Barbara, CA, USA. puneeth@wustl.edu.
Psychonomic bulletin & review
|November 6, 2023
概括
人类对面部的眼睛运动不同,有些看得更高,有些看得更低. 这项研究揭示了这些固定差异与不同的神经表达的面部有关,影响视觉处理.
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
- 人类行为人类行为.
背景情况:
- 人们在观看面孔时表现出一致的首选第一个固定位置.
- 大多数人固定在眼睛以下 (上方的观察者),而少数人固定在鼻子和嘴巴之间 (下方的观察者).
- 这些独特的固定偏好的神经基础在很大程度上是未知的.
研究的目的:
- 调查是否喜欢面部固定位置的长期差异与独特的神经表征有关.
- 探索适应过程中固定位置如何影响面部适应后效应 (FAE).
主要方法:
- 采用了凝视条件面部适应后效应 (FAE) 范式,对两个组进行了研究:上方看的人和下方看的人.
- 参与者在适应和测试期间 (距离3.6°) 在自己或其他组的首选位置保持固定.
- 在相同的条件下测量FAE与不同的固定位置进行适应和测试.
主要成果:
- 当适应和测试发生在相同的固定位置时,上部和下部观察者都表现出强烈的适应效应.
- 上部观察者显示,当适应发生在眼睛时,FAE在固定位置的部分转移.
- 下面的观察者没有显示出FAE的空间转移,无论适应位置如何.
结论:
- 首选的面部固定位置的差异与不同的神经表达的面部有关.
- 结果表明神经表现可能会变得更具位置不变,在视觉层次结构中更高.
- 上层观察者的数据与神经调在更高的视觉处理水平上不那么特定于位置的模型保持一致.
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