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The spatial impact of visual distractors on saccade latency

McSorley, E., McCloy, R. ORCID: https://orcid.org/0000-0003-2333-9640 and Lyne, C. (2012) The spatial impact of visual distractors on saccade latency. Vision Research, 60 (1). pp. 61-72. ISSN 0042-6989

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To link to this item DOI: 10.1016/j.visres.2012.03.007

Abstract/Summary

Remote transient changes in the environment, such as the onset of visual distractors, impact on the exe- cution of target directed saccadic eye movements. Studies that have examined the latency of the saccade response have shown conflicting results. When there was an element of target selection, saccade latency increased as the distance between distractor and target increased. In contrast, when target selection is minimized by restricting the target to appear on one axis position, latency has been found to be slowest when the distractor is shown at fixation and reduces as it moves away from this position, rather than from the target. Here we report four experiments examining saccade latency as target and distractor posi- tions are varied. We find support for both a dependence of saccade latency on distractor distance from target and from fixation: saccade latency was longer when distractor is shown close to fixation and even longer still when shown in an opposite location (180°) to the target. We suggest that this is due to inhib- itory interactions between the distractor, fixation and the target interfering with fixation disengagement and target selection.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Psychology and Clinical Language Sciences > Department of Psychology
Life Sciences > School of Psychology and Clinical Language Sciences > Neuroscience
Life Sciences > School of Psychology and Clinical Language Sciences > Perception and Action
ID Code:28392
Publisher:Elsevier

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