Spatial remapping of the visual world across saccades

被引:67
作者
Bays, Paul M.
Husain, Masud
机构
[1] Inst Cognit Neurosci, London WC1N 3AR, England
[2] UCL, Inst Neurol, Dept Brain Repair & Rehabil, London, England
基金
英国惠康基金;
关键词
corollary discharge; dorsal visual pathway; efference copy; parietal lobe; saccades; sensorimotor control; sensory prediction; spatial remapping; visual memory; visual stability;
D O I
10.1097/WNR.0b013e328244e6c3
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Recent research has identified neurons in the visual system that remap their receptive fields before a saccade. The activity of these neurons may signal a prediction of postsaccadic 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 nonperceptual processes: action control, sensorimotor adaptation and spatial memory.
引用
收藏
页码:1207 / 1213
页数:7
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