Journal article

The influence of perceptual stabilisation on perceptual grouping of temporally asynchronous stimuli

Adela SY Park, Phillip A Bedggood, Andrew B Metha, Andrew J Anderson

VISION RESEARCH | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2019

Abstract

Even during fixation, our eyes constantly make small, involuntary eye movements that cause the retinal image to be swept across our retinae. Despite this, our world appears completely stable, due to powerful perceptual stabilisation mechanisms. Whether these mechanisms are of functional consequence for visual performance remains largely unexplored, however. We directly tested this by using a perceptual grouping task, where physically aligned alternate grid elements were presented with an imperceptible temporal offset. Observers' abilities to reliably group the grid into rows (or columns) is posited to arise from the failure in compensation of retinal slip arising from the small eye movements..

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