面部选择性神经元的失活会改变在自由观看面部时的眼睛运动
bioRxiv : the preprint server for biology
|July 28, 2023
概括
研究人员发现,低皮层面部选择性神经元的失活会对眼睛的运动产生因果影响. 这项研究提供了第一个生理学证据,将高水平的面部视觉处理与眼运动系统联系起来.
科学领域:
- 神经科学是一个神经科学.
- 视觉感知 视觉感知 视觉感知
- 眼动运动系统 眼动运动系统
背景情况:
- 在观察脸部时,眼睛的运动遵循可预测的模式.
- 以前的研究将眼睛运动与低级图像突出性联系起来,而不是高级面部编码.
- 面部选择性神经元和眼睛运动之间的因果关系仍然没有被证明.
研究的目的:
- 研究面部选择性神经元在下皮层对眼睛运动的因果作用.
- 提供生理学证据,证明高水平视觉区域在面部感知过程中参与指导目光.
主要方法:
- 使用fMRI定位子子下皮层的面部补丁.
- 使用肌肉醇微注射非激活的面部选择性神经元.
- 在自然场景观看期间记录眼动.
主要成果:
- 面部选择神经元的失活改变了观察面部时的眼睛运动模式.
- 子忽视了眼睛,与非活化的半球相反.
- 这表明下皮质对眼睛运动的因果贡献.
结论:
- 在下皮层的面部选择性神经元因果关系影响眼睛的运动.
- 高水平的视觉处理直接影响眼运动系统.
- 这项研究弥合了面部感知和凝视控制之间的差距.
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