Optimizing visual motion perception during eye movements
Optimizing visual motion perception during eye movements
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DOI：
10.1016/s0896-6273(01)00486-x
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发表时间：
2001-11-08
期刊：
影响因子：
16.2
通讯作者：
Thier, P
中科院分区：
文献类型：
--
作者：
Haarmeier, T;Bunjes, F;Thier, P
我们通常感知到的是一个静止的、稳定的世界，尽管眼球运动引起了连贯的视觉运动，但我们能够从光流中正确地估计出前进的方向。这个关于感知不变性的惊人例子来自于视觉信息与预测眼球运动视觉结果的内部参考信号的比较。在此，我们证明了预测平滑追逐眼动结果的参考信号是在追逐运动指令和眼动引起的旋转流之间的方向选择相互作用的基础上不断校准的，从而最大限度地减少参考信号的缺陷，并保证对视觉运动的生态最佳解释。
We usually perceive a stationary, stable world and we are able to correctly estimate the direction of heading from optic flow despite coherent visual motion induced by eye movements. This astonishing example of perceptual invariance results from a comparison of visual information with internal reference signals predicting the visual consequences of an eye movement. Here we demonstrate that the reference signal predicting the consequences of smooth-pursuit eye movements is continuously calibrated on the basis of direction-selective interactions between the pursuit motor command and the rotational flow induced by the eye movement, thereby minimizing imperfections of the reference signal and guaranteeing an ecologically optimal interpretation of visual motion.