Typical and atypical language brain organization based on intrinsic connectivity and multitask functional asymmetries.
fmri
handedness
hemispheric specialization
human
intrinsic connectivity
language
neuroscience
Journal
eLife
ISSN: 2050-084X
Titre abrégé: Elife
Pays: England
ID NLM: 101579614
Informations de publication
Date de publication:
16 10 2020
16 10 2020
Historique:
received:
08
05
2020
accepted:
16
10
2020
pubmed:
17
10
2020
medline:
4
3
2021
entrez:
16
10
2020
Statut:
epublish
Résumé
Based on the joint investigation in 287 healthy volunteers (150 left-Handers (LH)) of language task-induced asymmetries and intrinsic connectivity strength of the sentence-processing supramodal network, we show that individuals with atypical rightward language lateralization (N = 30, 25 LH) do not rely on an organization that simply mirrors that of typical leftward lateralized individuals. Actually, the resting-state organization in the atypicals showed that their sentence processing was underpinned by left and right networks both wired for language processing and highly interacting by strong interhemispheric intrinsic connectivity and larger corpus callosum volume. Such a loose hemispheric specialization for language permits the hosting of language in either the left and/or right hemisphere as assessed by a very high incidence of dissociations across various language task-induced asymmetries in this group.
Identifiants
pubmed: 33064079
doi: 10.7554/eLife.58722
pii: 58722
pmc: PMC7605859
doi:
pii:
Banques de données
Dryad
['10.5061/dryad.ht76hdrcf']
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Subventions
Organisme : Agence Nationale de la Recherche
ID : ANR 16-LCV2-0006-01
Pays : International
Informations de copyright
© 2020, Labache et al.
Déclaration de conflit d'intérêts
LL, BM, MJ, FC, IH, NT No competing interests declared
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