在固定漂移期间,运动感知中的不连续性
bioRxiv : the preprint server for biology
|June 12, 2025
概括
人类视觉系统在固定性眼睛漂移期间感知到最小的运动,当刺激与视网膜滑动对齐时. 然而,与眼睛运动相反的刺激被认为是移动的,这种现象受到背景背景的影响.
科学领域:
- 视觉科学 视觉科学 视觉科学
- 神经科学是一个神经科学.
- 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对象感知,尽管眼睛不断移动.
- 在特定的条件下,例如固定漂移,运动感知可以减少,特别是当图像运动与视网膜滑动保持一致时.
研究的目的:
- 为了调查是否与视网膜滑动一致移动的刺激,即使在降低的大小,也被认为是稳定的.
- 探索背景参考框架在眼睛漂移期间对运动感知的影响.
主要方法:
- 使用自适应光学扫描光眼镜来呈现刺激.
- 刺激的运动取决于实时视网膜运动.
- 在有或没有世界固定背景内容的条件下测量感知运动,在不同距离.
主要成果:
- 观察到运动感知的一个明显的门.
- 随着视网膜滑动移动的刺激被认为几乎没有运动,无论大小如何.
- 与眼睛运动相同的方向移动的刺激被认为是移动的.
- 当背景内容与刺激相距超过4度时,效果会降低.
结论:
- 当图像运动与固定漂移期间的视网膜滑动相匹配时,视觉系统对稳定性表现出强烈的偏差.
- 运动的感知高度依赖于刺激运动,眼睛运动和背景视觉线索的存在/距离之间的关系.
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