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No supplementary evidence of attention to a spatial cue when saccadic facilitation is absent
Joe MacInnes 
,
Roopali Bhatnagar
,
Roopali Bhatnagar
Scientific Reports, Volume: 8, Issue: 1
Swansea University Author:
Joe MacInnes
-
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DOI (Published version): 10.1038/s41598-018-31633-w
Abstract
Attending a location in space facilitates responses to targets at that location when the time between cue and target is short. Certain types of exogenous cues – such as sudden peripheral onsets – have been described as reflexive and automatic. Recent studies however, have been showing many cases whe...
| Published in: | Scientific Reports |
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| ISSN: | 2045-2322 |
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Springer Science and Business Media LLC
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa63409 |
| first_indexed |
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2024-11-15T18:01:32Z |
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2023-06-08T15:07:23.3035376 v2 63409 2023-05-11 No supplementary evidence of attention to a spatial cue when saccadic facilitation is absent 06dcb003ec50192bafde2c77bef4fd5c 0000-0002-5134-1601 Joe MacInnes Joe MacInnes true false 2023-05-11 MACS Attending a location in space facilitates responses to targets at that location when the time between cue and target is short. Certain types of exogenous cues – such as sudden peripheral onsets – have been described as reflexive and automatic. Recent studies however, have been showing many cases where exogenous cues are less automatic than previously believed and do not always result in facilitation. A lack of the behavioral facilitation, however, does not automatically necessitate a lack of underlying attention to that location. We test exogenous cueing in two experiments where facilitation is and is not likely to be observed with saccadic responses. We also test alternate measures linked to the allocation of attention such as saccadic curvature, microsaccades and pupil size. As expected, we find early facilitation as measured by saccadic reaction time when CTOAs are predictable but not when they are randomized within a block. We find no impact of the cue on microsaccade direction for either experiment, and only a slight dip in the frequency of microsaccades after the cue. We do find that change in pupil size to the cue predicts the magnitude of the validity effect, but only in the experiment where facilitation was observed. In both experiments, we observed a tendency for saccadic curvature to deviate away from the cued location and this was stronger for early CTOAs and toward vertical targets. Overall, we find that only change in pupil size is consistent with observed facilitation. Saccadic curvature is influenced by the onset of the cue, buts its direction is indicative of oculomotor inhibition whether we see RT facilitation or not. Microsaccades were not diagnostic in either experiment. Finally, we see little to no evidence of attention at the cued location in any additional measures when facilitation of saccadic responses is absent. Journal Article Scientific Reports 8 1 Springer Science and Business Media LLC 2045-2322 0 0 0 0001-01-01 10.1038/s41598-018-31633-w http://dx.doi.org/10.1038/s41598-018-31633-w COLLEGE NANME Mathematics and Computer Science School COLLEGE CODE MACS Swansea University The article was prepared within the framework of the Academic Fund Program at the National Research University Higher School of Economics (HSE) in 2017 (Grant No. 27-05-0003) and by the Russian Academic Excellence Project “5–100”. 2023-06-08T15:07:23.3035376 2023-05-11T11:30:59.2978832 Faculty of Science and Engineering School of Mathematics and Computer Science - Computer Science Joe MacInnes 0000-0002-5134-1601 1 Roopali Bhatnagar 2 63409__27649__6bbb89dd418343739e3306298936b177.pdf 63409.pdf 2023-05-31T10:11:35.3024182 Output 1783510 application/pdf Version of Record true Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. true eng http://creativecommons.org/licenses/by/4.0/. |
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No supplementary evidence of attention to a spatial cue when saccadic facilitation is absent |
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No supplementary evidence of attention to a spatial cue when saccadic facilitation is absent Joe MacInnes |
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No supplementary evidence of attention to a spatial cue when saccadic facilitation is absent |
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No supplementary evidence of attention to a spatial cue when saccadic facilitation is absent |
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Attending a location in space facilitates responses to targets at that location when the time between cue and target is short. Certain types of exogenous cues – such as sudden peripheral onsets – have been described as reflexive and automatic. Recent studies however, have been showing many cases where exogenous cues are less automatic than previously believed and do not always result in facilitation. A lack of the behavioral facilitation, however, does not automatically necessitate a lack of underlying attention to that location. We test exogenous cueing in two experiments where facilitation is and is not likely to be observed with saccadic responses. We also test alternate measures linked to the allocation of attention such as saccadic curvature, microsaccades and pupil size. As expected, we find early facilitation as measured by saccadic reaction time when CTOAs are predictable but not when they are randomized within a block. We find no impact of the cue on microsaccade direction for either experiment, and only a slight dip in the frequency of microsaccades after the cue. We do find that change in pupil size to the cue predicts the magnitude of the validity effect, but only in the experiment where facilitation was observed. In both experiments, we observed a tendency for saccadic curvature to deviate away from the cued location and this was stronger for early CTOAs and toward vertical targets. Overall, we find that only change in pupil size is consistent with observed facilitation. Saccadic curvature is influenced by the onset of the cue, buts its direction is indicative of oculomotor inhibition whether we see RT facilitation or not. Microsaccades were not diagnostic in either experiment. Finally, we see little to no evidence of attention at the cued location in any additional measures when facilitation of saccadic responses is absent. |
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