预先的知识会使身体姿势的视觉记忆产生偏见
Qiu Han1, Marco Gandolfo1, Marius V Peelen1
1Donders Institute for Brain, Cognition and Behaviour, Radboud University, 6525 HR Nijmegen, the Netherlands.
iScience
|March 29, 2024
概括
身体姿势的视觉记忆受到我们对重力和生物力学的经验的偏见. 参与者错误地把举起的手臂记得更低,更合理,这表明先验如何塑造视觉感知.
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
- 人类运动控制人体运动控制
背景情况:
- 身体姿势传达了重要的社会和故意信息.
- 视觉系统中身体姿势的神经表达还没有得到很好的理解.
- 之前的视觉和运动体验可能会影响人们对身体姿势的感知.
研究的目的:
- 调查先验,特别是重力和生物力学约束如何对身体姿势的视觉表示产生偏见.
- 为了确定这些偏差是否会影响身体姿势的视觉记忆.
主要方法:
- 利用变化辨别和调整任务来探测视觉记忆.
- 在三个实验中向246名参与者展示了短暂闪的身体姿势.
- 通过逆转身体姿势来操纵刺激,以控制视觉混乱.
主要成果:
- 参与者系统地错误地记住举起的手臂处于较低的位置.
- 视觉记忆倾向于坚持生物力学可信性的姿势.
- 当使用倒置的身体刺激时,偏见被消除了,排除了低水平的视觉混.
结论:
- 身体姿势的视觉记忆不是一个真实表示,而是通过内部先验来调节的.
- 一般的先验 (重力) 和特定的先验 (生物力学) 都影响我们如何视觉记住身体配置.
- 这些发现凸显了视觉记忆对像身体姿势这样的复杂刺激的积极,建设性的性质.
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