感知到的旅行距离取决于自动运动的速度和方向
Ambika Bansal1, Meaghan McManus2, Björn Jörges1
1Centre for Vision Research, York University, Toronto, Canada.
PloS one
|September 25, 2024
概括
感知到的旅行距离估计是不准确的,并且随着速度和方向而变化. 较慢的速度和不前进的运动通常会导致高估,挑战现有的空间感知模型.
科学领域:
- 认知科学 认知科学
- 神经科学是一个神经科学.
- 人类的感知 人类的感知
背景情况:
- 准确估计旅行距离对于导航和运动至关重要.
- 现有的关于感知旅行距离的研究主要集中在前进运动上,并假定独立于速度.
- 在人类空间感知中,感知距离超过实际距离的计时误差是常见的.
研究的目的:
- 研究视觉诱导自动运动的模拟速度和方向如何影响感知到的旅行距离.
- 检查不同运动参数的旅行距离感知现有模型的有效性.
- 为了确定感知到的旅行距离是否与时间和空间相集成,或者仅在空间上.
主要方法:
- 利用虚拟现实 (VR) 在身体静止的参与者 (n=15) 中创建视觉诱导的自我运动.
- 采用了两个任务:移动到目标和调整目标,以测量感知到的旅行距离.
- 在虚拟走廊内,可变化的运动速度 (1-5 m/s) 和方向 (上,下,前,后).
主要成果:
- 模拟的速度和方向显著改变了增益 (感知/实际距离).
- 较慢的速度导致更高的收益 (更大的高估值),而不是更快的速度在两个任务.
- 方向效应因任务而异:向前运动在调整-目标中收益较低,而向后运动在移动到目标中收益较低.
结论:
- 感知到的旅行距离受到光流的速度和方向的影响,这表明光流在时间和空间上的整合.
- 一个常用的旅行距离感知模型最适合向前运动,这表明需要对非向前方向进行修改.
- 这些发现凸显了空间更新的复杂性和对自我运动感知更全面模型的需求.
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