Cortical magnification in human visual cortex parallels task performance around the visual field.
cortical magnification
fMRI
human
neuroscience
primary visual cortex
retinotopic maps
visual performance asymmetries
Journal
eLife
ISSN: 2050-084X
Titre abrégé: Elife
Pays: England
ID NLM: 101579614
Informations de publication
Date de publication:
03 08 2021
03 08 2021
Historique:
received:
19
02
2021
accepted:
02
08
2021
pubmed:
4
8
2021
medline:
24
9
2021
entrez:
3
8
2021
Statut:
epublish
Résumé
Human vision has striking radial asymmetries, with performance on many tasks varying sharply with stimulus polar angle. Performance is generally better on the horizontal than vertical meridian, and on the lower than upper vertical meridian, and these asymmetries decrease gradually with deviation from the vertical meridian. Here, we report cortical magnification at a fine angular resolution around the visual field. This precision enables comparisons between cortical magnification and behavior, between cortical magnification and retinal cell densities, and between cortical magnification in twin pairs. We show that cortical magnification in the human primary visual cortex, measured in 163 subjects, varies substantially around the visual field, with a pattern similar to behavior. These radial asymmetries in the cortex are larger than those found in the retina, and they are correlated between monozygotic twin pairs. These findings indicate a tight link between cortical topography and behavior, and suggest that visual field asymmetries are partly heritable.
Identifiants
pubmed: 34342581
doi: 10.7554/eLife.67685
pii: 67685
pmc: PMC8378846
doi:
pii:
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : NEI NIH HHS
ID : R01 EY027401
Pays : United States
Organisme : NIMH NIH HHS
ID : R01 MH111417
Pays : United States
Organisme : NIMH NIH HHS
ID : U54 MH091657
Pays : United States
Informations de copyright
© 2021, Benson et al.
Déclaration de conflit d'intérêts
NB, EK, AB, JW No competing interests declared, MC Reviewing editor, eLife
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