Iain Gilchrist

in The Oxford Handbook of Eye Movements

Published in print August 2011 | ISBN: 9780199539789
Published online November 2012 | | DOI:

Series: Oxford Library of Psychology


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Saccades are fast ballistic movements of the eye. A saccade is followed by a fixation—a period of time when the eye is relatively stationary and useful visual information is gathered. Because visual acuity decreases rapidly away from the current direction of gaze, saccades are required to point the eye at regions of interest. Saccadic sampling and the rapid fall of visual ability define the temporal and spatial structure of the input to the visual system. During a fixation, peripheral vision is used to determine the location for the next fixation. In a scene that contains multiple possible targets, selecting the target for the next saccade involves an interplay between the visual properties of locations in the environment and the goal of the observer.

Keywords: saccade; saccade latencies; visual stimulus; saccadic eye movements; motor execution

Article.  6178 words. 

Subjects: Psychology ; Cognitive Psychology ; Cognitive Neuroscience

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