在固定漂移过程中,运动感知中的不连续性
Josephine C D'Angelo1,2, Pavan Tiruveedhula1,3, Raymond J Weber4,5
1Herbert Wertheim School of Optometry and Vision Science, University of California, Berkeley, Berkeley, CA, USA.
Journal of vision
|January 14, 2026
概括
人类视觉系统在眼睛漂移时会以不同的方式感知运动. 与视网膜滑动对齐的刺激看起来是稳定的,而与之相反的刺激看起来是移动的,特别是与遥远的背景.
科学领域:
- 神经科学是一个神经科学.
- 视觉科学科学 视觉科学
- 感知 感知 感知 感知
背景情况:
- 人类视觉系统通常保持稳定的知觉,尽管眼睛不断移动.
- 然而,在固定漂移过程中,随着视网膜滑动而移动的视觉刺激会变得不可察觉,即使被放大.
- 这种现象引发了关于自然眼动过程中运动感知背后的机制的问题.
研究的目的:
- 为了调查与视网膜滑动移动的刺激,即使在降低的大小,被认为是稳定的.
- 探索背景背景对眼睛漂移时运动感知的影响.
主要方法:
- 使用适应光学扫描光眼镜来呈现刺激.
- 刺激的运动取决于测量的视网膜运动.
- 试验对象在不同的背景条件下 (世界固定,近距离和远距离) 报告了感知到的运动.
主要成果:
- 观察到运动感知的一个明显的门.
- 在视网膜滑动方向移动的刺激被认为几乎没有运动,无论大小如何.
- 与眼睛运动相反的刺激被认为是移动的.
- 当背景内容偏移超过4°时,这种效应显著减少.
结论:
- 固定漂移期间的运动知觉对刺激运动和视网膜滑动之间的关系非常敏感.
- 对象的感知稳定性受其与视网膜相对的运动和上下文背景元素的存在的影响.
- 背景元素的空间分离在调节这种视觉现象方面发挥着至关重要的作用.
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