Article (Scientific journals)
Spatial Resolution Evaluation Based on Experienced Visual Categories With Sweep Evoked Periodic EEG Activity.
Hemptinne, Coralie; Hupin, Nathan; LOCHY, Aliette et al.
2023In Investigative Ophthalmology and Visual Science, 64 (3), p. 17
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Keywords :
Adult; Humans; Visual Acuity; Electrodes; Electroencephalography; Evoked Potentials, Visual; Vision, Low; EEG; face individuation; sweep visual evoked potentials; word recognition; Ophthalmology; Sensory Systems; Cellular and Molecular Neuroscience; General Medicine
Abstract :
[en] [en] PURPOSE: Visual function is typically evaluated in clinical settings with visual acuity (VA), a test requiring to behaviorally match or name optotypes such as tumbling E or Snellen letters. The ability to recognize these symbols has little in common with the automatic and rapid visual recognition of socially important stimuli in real life. Here we use sweep visual evoked potentials to assess spatial resolution objectively based on the recognition of human faces and written words. METHODS: To this end, we tested unfamiliar face individuation1 and visual word recognition2 in 15 normally sighted adult volunteers with a 68-electrode electroencephalogram system. RESULTS: Unlike previous measures of low-level visual function including VA, the most sensitive electrode was found at an electrode different from Oz in a majority of participants. Thresholds until which faces and words could be recognized were evaluated at the most sensitive electrode defined individually for each participant. Word recognition thresholds corresponded with the VA level expected from normally sighted participants, and even a VA significantly higher than expected from normally sighted individuals for a few participants. CONCLUSIONS: Spatial resolution can be evaluated based on high-level stimuli encountered in day-to-day life, such as faces or written words with sweep visual evoked potentials.
Disciplines :
Ophthalmology
Author, co-author :
Hemptinne, Coralie;  Institute of Neuroscience, Université catholique de Louvain, Louvain-La-Neuve, Belgium ; Ophthalmology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
Hupin, Nathan;  Institute of Neuroscience, Université catholique de Louvain, Louvain-La-Neuve, Belgium ; Ophthalmology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
LOCHY, Aliette  ;  University of Luxembourg > Faculty of Humanities, Education and Social Sciences (FHSE) > Department of Behavioural and Cognitive Sciences (DBCS) > Cognitive Science and Assessment
Yüksel, Demet;  Institute of Neuroscience, Université catholique de Louvain, Louvain-La-Neuve, Belgium ; Ophthalmology Department, Cliniques Universitaires Saint-Luc, Brussels, Belgium
Rossion, Bruno;  Institute of Neuroscience, Université catholique de Louvain, Louvain-La-Neuve, Belgium ; University of Lorraine, CNRS, CRAN, Lorraine, France
External co-authors :
yes
Language :
English
Title :
Spatial Resolution Evaluation Based on Experienced Visual Categories With Sweep Evoked Periodic EEG Activity.
Publication date :
01 March 2023
Journal title :
Investigative Ophthalmology and Visual Science
ISSN :
0146-0404
eISSN :
1552-5783
Publisher :
Association for Research in Vision and Ophthalmology Inc., United States
Volume :
64
Issue :
3
Pages :
17
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBilu :
since 20 November 2023

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