Spatial remapping of the visual world across saccades.
Spatial remapping of the visual world across saccades.
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在扫视中对视觉世界的空间重新映射。
DOI：
10.1097/wnr.0b013e328244e6c3
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发表时间：
2007-08-06
期刊：
影响因子：
1.7
通讯作者：
Husain, Masud
中科院分区：
文献类型：
--
作者：
Bays, Paul M.;Husain, Masud
关键词：
最近的研究发现，视觉系统中的神经元在扫视之前会重新映射它们的感受野。这些神经元的活动可能是眼跳后视觉输入的预测信号，源自眼跳运动输出的传出拷贝。这样的预测通常被认为是通过补偿伴随着每一次眼球运动的视网膜图像的变化，来支撑我们对稳定视觉世界的感知。在这里，我们回顾了证据，并得出结论，预测实际上在维持视觉稳定性方面并没有起到重要作用。相反，我们考虑了一种新的视角，即空间重新映射的主要功能是支持三个关键的非知觉过程：动作控制、感觉运动适应和空间记忆。
Recent research has identified neurons in the visual system that remap their receptive fields prior to a saccade. The activity of these neurons may signal a prediction of post-saccadic visual input, derived from an efference copy of saccadic motor output. Such a prediction is often thought to underlie our perception of a stable visual world, by compensating for the shifts in retinal image that accompany each eye movement. Here we review the evidence, and conclude that prediction does not in fact play a significant role in maintaining visual stability. Instead, we consider a novel perspective in which the primary function of spatial remapping is to support three key non-perceptual processes: action control, sensorimotor adaptation and spatial memory.