Duration perception for visual stimuli is impaired in dyslexia but deficits in visual processing may not be the culprits.
Journal
Scientific reports
ISSN: 2045-2322
Titre abrégé: Sci Rep
Pays: England
ID NLM: 101563288
Informations de publication
Date de publication:
08 08 2023
08 08 2023
Historique:
received:
13
05
2023
accepted:
04
08
2023
medline:
10
8
2023
pubmed:
9
8
2023
entrez:
8
8
2023
Statut:
epublish
Résumé
Dyslexics underperform controls in estimating and comparing time intervals defined by visual stimuli. Accuracy in vision-based duration perception requires efficient processing of visual events because these will define the onset and offset of time intervals. Since dyslexics have difficulties processing dimensions of visual stimuli like luminance contrasts and motion, we do not know the extent to which these visual deficits are responsible for their difficulties in judging time intervals. To address this gap, we asked adults with dyslexia and matched controls to perform an interval comparison task involving five different types of visual stimuli with different levels of challenge regarding luminance contrasts and motion. If the expected disadvantage of dyslexics in visual duration perception increased for stimuli requiring increased luminance or motion processing, this would indicate that visual processing plays a role. Results showed poorer time discrimination in dyslexics, but this disadvantage did not change according to stimulus type. Complementary analyses of oculomotor behavior during the task suggested that the poorer timing performance of dyslexics may relate instead to attention and/or engagement with the task. Our findings strengthen the evidence in favor of visual duration perception deficits in dyslexia, but not the hypothesis that these result from purely visual problems.
Identifiants
pubmed: 37553469
doi: 10.1038/s41598-023-40081-0
pii: 10.1038/s41598-023-40081-0
pmc: PMC10409714
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
12873Commentaires et corrections
Type : ErratumIn
Informations de copyright
© 2023. Springer Nature Limited.
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