Cortical and white matter correlates of language-learning aptitudes.
cortical morphometry
cortical surface area
cortical thickness
dwMRI
language-learning aptitude
ultra-high field
Journal
Human brain mapping
ISSN: 1097-0193
Titre abrégé: Hum Brain Mapp
Pays: United States
ID NLM: 9419065
Informations de publication
Date de publication:
15 10 2021
15 10 2021
Historique:
revised:
13
06
2021
received:
09
02
2021
accepted:
08
07
2021
pubmed:
22
7
2021
medline:
22
3
2022
entrez:
21
7
2021
Statut:
ppublish
Résumé
People learn new languages with varying degrees of success but what are the neuroanatomical correlates of the difference in language-learning aptitude? In this study, we set out to investigate how differences in cortical morphology and white matter microstructure correlate with aptitudes for vocabulary learning, phonetic memory, and grammatical inferencing as measured by the first-language neutral LLAMA test battery. We used ultra-high field (7T) magnetic resonance imaging to estimate the cortical thickness and surface area from sub-millimeter resolved image volumes. Further, diffusion kurtosis imaging was used to map diffusion properties related to the tissue microstructure from known language-related white matter tracts. We found a correlation between cortical surface area in the left posterior-inferior precuneus and vocabulary learning aptitude, possibly indicating a greater predisposition for storing word-figure associations. Moreover, we report negative correlations between scores for phonetic memory and axial kurtosis in left arcuate fasciculus as well as mean kurtosis, axial kurtosis, and radial kurtosis of the left superior longitudinal fasciculus III, which are tracts connecting cortical areas important for phonological working memory.
Identifiants
pubmed: 34288240
doi: 10.1002/hbm.25598
pmc: PMC8449104
doi:
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
5037-5050Informations de copyright
© 2021 The Authors. Human Brain Mapping published by Wiley Periodicals LLC.
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