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Neuroreport. 2007 Aug 6;18(12):1207-13.

Spatial remapping of the visual world across saccades.

Author information

1
Institute of Cognitive Neuroscience, Institute of Neurology, University College London, Queen Square, London, UK. p.bays@ion.ucl.ac.uk

Abstract

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.

PMID:
17632269
PMCID:
PMC2531238
DOI:
10.1097/WNR.0b013e328244e6c3
[Indexed for MEDLINE]
Free PMC Article
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