A presaccadic perceptual impairment at the postsaccadic location of the blindspot.
Journal
PloS one
ISSN: 1932-6203
Titre abrégé: PLoS One
Pays: United States
ID NLM: 101285081
Informations de publication
Date de publication:
2023
2023
Historique:
received:
07
07
2023
accepted:
31
08
2023
medline:
18
9
2023
pubmed:
14
9
2023
entrez:
14
9
2023
Statut:
epublish
Résumé
Saccadic eye movements are preceded by profound changes in visual perception. These changes have been linked to the phenomenon of 'forward remapping', in which cells begin to respond to stimuli that appear in their post-saccadic receptive field before the eye has moved. Few studies have examined the perceptual consequences of remapping of areas of impaired sensory acuity, such as the blindspot. Understanding the perceptual consequences of remapping of scotomas may produce important insights into why some neurovisual deficits, such as hemianopia are so intractable for rehabilitation. The current study took advantage of a naturally occurring scotoma in healthy participants (the blindspot) to examine pre-saccadic perception at the upcoming location of the blindspot. Participants viewed stimuli monocularly and were required to make stimulus-driven vertical eye-movements. At a variable latency between the onset of saccade target (ST) and saccade execution a discrimination target (DT) was presented at one of 4 possible locations; within the blindspot, contralateral to the blindspot, in post-saccadic location of the blindspot and contralateral to the post-saccadic location of the blindspot. There was a significant perceptual impairment at the post-saccadic location of the blindspot relative to the contralateral post-saccadic location of the blindspot and the post-saccadic location of the blindspot in a no-saccade control condition. These data are consistent with the idea that the visual system includes a representation of the blindspot which is remapped prior to saccade onset.
Identifiants
pubmed: 37708131
doi: 10.1371/journal.pone.0291582
pii: PONE-D-23-17473
pmc: PMC10501568
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e0291582Informations de copyright
Copyright: © 2023 Smith et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Déclaration de conflit d'intérêts
The authors have declared that no competing interests exist.
Références
Trends Cogn Sci. 2014 Dec;18(12):621-8
pubmed: 25455690
Clin Ophthalmol. 2008 Mar;2(1):93-102
pubmed: 19668392
J Neurophysiol. 2003 Mar;89(3):1519-27
pubmed: 12612015
Annu Rev Vis Sci. 2021 Sep 15;7:257-277
pubmed: 34242055
J Neurophysiol. 2015 Jun 1;113(10):3588-99
pubmed: 25761953
Neuron. 2001 Mar;29(3):757-67
pubmed: 11301034
Nat Neurosci. 2011 Feb;14(2):252-6
pubmed: 21186360
Curr Biol. 2016 Jun 20;26(12):R491-R492
pubmed: 27326707
Philos Trans R Soc Lond B Biol Sci. 2011 Feb 27;366(1564):528-39
pubmed: 21242141
J Neurophysiol. 1997 Sep;78(3):1373-83
pubmed: 9310428
Vision Res. 1996 Jun;36(12):1827-37
pubmed: 8759451
Proc Natl Acad Sci U S A. 2002 Mar 19;99(6):4026-31
pubmed: 11904446
Prog Brain Res. 2020;253:169-200
pubmed: 32771122
J Neurophysiol. 1995 May;73(5):1988-2003
pubmed: 7623096
Trends Cogn Sci. 2010 Apr;14(4):147-53
pubmed: 20189870
Neuropsychologia. 1995 Mar;33(3):287-303
pubmed: 7791997
Brain. 2010 Jun;133(Pt 6):1717-28
pubmed: 20427519
Cochrane Database Syst Rev. 2019 May 23;5:CD008388
pubmed: 31120142
Neuropsychologia. 2012 Apr;50(5):997-1005
pubmed: 22361254
Atten Percept Psychophys. 2015 Jan;77(1):3-27
pubmed: 25380979
Annu Rev Neurosci. 2010;33:89-108
pubmed: 20367317
Trends Cogn Sci. 2008 Dec;12(12):466-73
pubmed: 18951831
J Neurophysiol. 2005 May;93(5):2374-87
pubmed: 15634711
Science. 1992 Jan 3;255(5040):90-2
pubmed: 1553535
J Neurophysiol. 2013 Mar;109(5):1425-34
pubmed: 23221410
Nat Commun. 2016 Feb 01;7:10402
pubmed: 26832423
Q J Exp Psychol A. 1986 Aug;38(3):475-91
pubmed: 3763952