Oculomotor evidence for top-down control following the initial saccade.
The goal of the current study was to investigate how salience-driven and goal-driven processes unfold during visual search over multiple eye movements. Eye movements were recorded while observers searched for a target, which was located on (Experiment 1) or defined as (Experiment 2) a specific orien...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Public Library of Science (PLoS)
2011-01-01
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| Series: | PLoS ONE |
| Online Access: | http://europepmc.org/articles/PMC3169564?pdf=render |
| _version_ | 1811218969188630528 |
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| author | Alisha Siebold Wieske van Zoest Mieke Donk |
| author_facet | Alisha Siebold Wieske van Zoest Mieke Donk |
| author_sort | Alisha Siebold |
| collection | DOAJ |
| description | The goal of the current study was to investigate how salience-driven and goal-driven processes unfold during visual search over multiple eye movements. Eye movements were recorded while observers searched for a target, which was located on (Experiment 1) or defined as (Experiment 2) a specific orientation singleton. This singleton could either be the most, medium, or least salient element in the display. Results were analyzed as a function of response time separately for initial and second eye movements. Irrespective of the search task, initial saccades elicited shortly after the onset of the search display were primarily salience-driven whereas initial saccades elicited after approximately 250 ms were completely unaffected by salience. Initial saccades were increasingly guided in line with task requirements with increasing response times. Second saccades were completely unaffected by salience and were consistently goal-driven, irrespective of response time. These results suggest that stimulus-salience affects the visual system only briefly after a visual image enters the brain and has no effect thereafter. |
| first_indexed | 2024-04-12T07:17:58Z |
| format | Article |
| id | doaj.art-1445228cf2cb448893d18c2d4e143f03 |
| institution | Directory Open Access Journal |
| issn | 1932-6203 |
| language | English |
| last_indexed | 2024-04-12T07:17:58Z |
| publishDate | 2011-01-01 |
| publisher | Public Library of Science (PLoS) |
| record_format | Article |
| series | PLoS ONE |
| spelling | doaj.art-1445228cf2cb448893d18c2d4e143f032022-12-22T03:42:25ZengPublic Library of Science (PLoS)PLoS ONE1932-62032011-01-0169e2355210.1371/journal.pone.0023552Oculomotor evidence for top-down control following the initial saccade.Alisha SieboldWieske van ZoestMieke DonkThe goal of the current study was to investigate how salience-driven and goal-driven processes unfold during visual search over multiple eye movements. Eye movements were recorded while observers searched for a target, which was located on (Experiment 1) or defined as (Experiment 2) a specific orientation singleton. This singleton could either be the most, medium, or least salient element in the display. Results were analyzed as a function of response time separately for initial and second eye movements. Irrespective of the search task, initial saccades elicited shortly after the onset of the search display were primarily salience-driven whereas initial saccades elicited after approximately 250 ms were completely unaffected by salience. Initial saccades were increasingly guided in line with task requirements with increasing response times. Second saccades were completely unaffected by salience and were consistently goal-driven, irrespective of response time. These results suggest that stimulus-salience affects the visual system only briefly after a visual image enters the brain and has no effect thereafter.http://europepmc.org/articles/PMC3169564?pdf=render |
| spellingShingle | Alisha Siebold Wieske van Zoest Mieke Donk Oculomotor evidence for top-down control following the initial saccade. PLoS ONE |
| title | Oculomotor evidence for top-down control following the initial saccade. |
| title_full | Oculomotor evidence for top-down control following the initial saccade. |
| title_fullStr | Oculomotor evidence for top-down control following the initial saccade. |
| title_full_unstemmed | Oculomotor evidence for top-down control following the initial saccade. |
| title_short | Oculomotor evidence for top-down control following the initial saccade. |
| title_sort | oculomotor evidence for top down control following the initial saccade |
| url | http://europepmc.org/articles/PMC3169564?pdf=render |
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