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Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements

When a distractor appears close to the target location, saccades are less accurate. However, the presence of a further distractor, remote from those stimuli, increases the saccade response latency and improves accuracy. Explanations for this are either that the second, remote distractor impacts dire...

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Autores principales: McSorley, Eugene, Cruickshank, Alice G., McCloy, Rachel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Association for Research in Vision and Ophthalmology 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7980046/
https://www.ncbi.nlm.nih.gov/pubmed/33729451
http://dx.doi.org/10.1167/jov.21.3.17
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author McSorley, Eugene
Cruickshank, Alice G.
McCloy, Rachel
author_facet McSorley, Eugene
Cruickshank, Alice G.
McCloy, Rachel
author_sort McSorley, Eugene
collection PubMed
description When a distractor appears close to the target location, saccades are less accurate. However, the presence of a further distractor, remote from those stimuli, increases the saccade response latency and improves accuracy. Explanations for this are either that the second, remote distractor impacts directly on target selection processes or that the remote distractor merely impairs the ability to initiate a saccade and changes the time at which unaffected target selection processes are accessed. In order to tease these two explanations apart, here we examine the relationship between latency and accuracy of saccades to a target and close distractor pair while a remote distractor appears at variable distance. Accuracy improvements are found to follow a similar pattern, regardless of the presence of the remote distractor, which suggests that the effect of the remote distractor is not the result of a direct impact on the target selection process. Our findings support the proposal that a remote distractor impairs the ability to initiate a saccade, meaning the competition between target and close distractor is accessed at a later time, thus resulting in more accurate saccades.
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spelling pubmed-79800462021-03-26 Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements McSorley, Eugene Cruickshank, Alice G. McCloy, Rachel J Vis Article When a distractor appears close to the target location, saccades are less accurate. However, the presence of a further distractor, remote from those stimuli, increases the saccade response latency and improves accuracy. Explanations for this are either that the second, remote distractor impacts directly on target selection processes or that the remote distractor merely impairs the ability to initiate a saccade and changes the time at which unaffected target selection processes are accessed. In order to tease these two explanations apart, here we examine the relationship between latency and accuracy of saccades to a target and close distractor pair while a remote distractor appears at variable distance. Accuracy improvements are found to follow a similar pattern, regardless of the presence of the remote distractor, which suggests that the effect of the remote distractor is not the result of a direct impact on the target selection process. Our findings support the proposal that a remote distractor impairs the ability to initiate a saccade, meaning the competition between target and close distractor is accessed at a later time, thus resulting in more accurate saccades. The Association for Research in Vision and Ophthalmology 2021-03-17 /pmc/articles/PMC7980046/ /pubmed/33729451 http://dx.doi.org/10.1167/jov.21.3.17 Text en Copyright 2021 The Authors http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License.
spellingShingle Article
McSorley, Eugene
Cruickshank, Alice G.
McCloy, Rachel
Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements
title Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements
title_full Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements
title_fullStr Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements
title_full_unstemmed Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements
title_short Inhibition of saccade initiation improves saccade accuracy: The role of local and remote visual distractors in the control of saccadic eye movements
title_sort inhibition of saccade initiation improves saccade accuracy: the role of local and remote visual distractors in the control of saccadic eye movements
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7980046/
https://www.ncbi.nlm.nih.gov/pubmed/33729451
http://dx.doi.org/10.1167/jov.21.3.17
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