One right can make a left: sentence processing in the right hemisphere after perinatal stroke.
cognitive development
fMRI
language
plasticity
stroke
Journal
Cerebral cortex (New York, N.Y. : 1991)
ISSN: 1460-2199
Titre abrégé: Cereb Cortex
Pays: United States
ID NLM: 9110718
Informations de publication
Date de publication:
27 Nov 2023
27 Nov 2023
Historique:
received:
14
04
2023
revised:
08
09
2023
revised:
09
09
2023
pmc-release:
19
10
2024
medline:
4
12
2023
pubmed:
20
10
2023
entrez:
20
10
2023
Statut:
ppublish
Résumé
When brain regions that are critical for a cognitive function in adulthood are irreversibly damaged at birth, what patterns of plasticity support the successful development of that function in an alternative location? Here we investigate the consistency of language organization in the right hemisphere (RH) after a left hemisphere (LH) perinatal stroke. We analyzed fMRI data collected during an auditory sentence comprehension task on 14 people with large cortical LH perinatal arterial ischemic strokes (left hemisphere perinatal stroke (LHPS) participants) and 11 healthy sibling controls using a "top voxel" approach that allowed us to compare the same number of active voxels across each participant and in each hemisphere for controls. We found (1) LHPS participants consistently recruited the same RH areas that were a mirror-image of typical LH areas, and (2) the RH areas recruited in LHPS participants aligned better with the strongly activated LH areas of the typically developed brains of control participants (when flipped images were compared) than the weakly activated RH areas. Our findings suggest that the successful development of language processing in the RH after a LH perinatal stroke may in part depend on recruiting an arrangement of frontotemporal areas reflective of the typical dominant LH.
Identifiants
pubmed: 37859521
pii: 7323811
doi: 10.1093/cercor/bhad362
pmc: PMC10690853
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
11257-11268Subventions
Organisme : NIDCD NIH HHS
ID : R01 DC016902
Pays : United States
Organisme : NIH HHS
ID : R01DC016902
Pays : United States
Organisme : NICHD NIH HHS
ID : P50 HD105328
Pays : United States
Organisme : NINDS NIH HHS
ID : T32 NS041218
Pays : United States
Organisme : NIDCD NIH HHS
ID : K18 DC014558
Pays : United States
Informations de copyright
© The Author(s) 2023. Published by Oxford University Press. All rights reserved. For permissions, please e-mail: journals.permission@oup.com.
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