Presaccadic attention sharpens visual acuity.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
20 02 2023
20 02 2023
Historique:
received:
16
11
2022
accepted:
14
02
2023
entrez:
22
2
2023
pubmed:
23
2
2023
medline:
25
2
2023
Statut:
epublish
Résumé
Visual perception is limited by spatial resolution, the ability to discriminate fine details. Spatial resolution not only declines with eccentricity but also differs for polar angle locations around the visual field, also known as 'performance fields'. To compensate for poor peripheral resolution, we make rapid eye movements-saccades-to bring peripheral objects into high-acuity foveal vision. Already before saccade onset, visual attention shifts to the saccade target location and prioritizes visual processing. This presaccadic shift of attention improves performance in many visual tasks, but whether it changes resolution is unknown. Here, we investigated whether presaccadic attention sharpens peripheral spatial resolution; and if so, whether such effect interacts with performance fields asymmetries. We measured acuity thresholds in an orientation discrimination task during fixation and saccade preparation around the visual field. The results revealed that presaccadic attention sharpens acuity, which can facilitate a smooth transition from peripheral to foveal representation. This acuity enhancement is similar across the four cardinal locations; thus, the typically robust effect of presaccadic attention does not change polar angle differences in resolution.
Identifiants
pubmed: 36807313
doi: 10.1038/s41598-023-29990-2
pii: 10.1038/s41598-023-29990-2
pmc: PMC9941468
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Research Support, N.I.H., Extramural
Langues
eng
Sous-ensembles de citation
IM
Pagination
2981Subventions
Organisme : NEI NIH HHS
ID : R01 EY027401
Pays : United States
Organisme : NEI NIH HHS
ID : R01-EY027401
Pays : United States
Informations de copyright
© 2023. The Author(s).
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