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Multimodal imaging of brain reorganization in hearing late learners of sign language

The neural plasticity underlying language learning is a process rather than a single event. However, the dynamics of training‐induced brain reorganization have rarely been examined, especially using a multimodal magnetic resonance imaging approach, which allows us to study the relationship between f...

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Autores principales: Banaszkiewicz, Anna, Matuszewski, Jacek, Bola, Łukasz, Szczepanik, Michał, Kossowski, Bartosz, Rutkowski, Paweł, Szwed, Marcin, Emmorey, Karen, Jednoróg, Katarzyna, Marchewka, Artur
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley & Sons, Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7776004/
https://www.ncbi.nlm.nih.gov/pubmed/33098616
http://dx.doi.org/10.1002/hbm.25229
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author Banaszkiewicz, Anna
Matuszewski, Jacek
Bola, Łukasz
Szczepanik, Michał
Kossowski, Bartosz
Rutkowski, Paweł
Szwed, Marcin
Emmorey, Karen
Jednoróg, Katarzyna
Marchewka, Artur
author_facet Banaszkiewicz, Anna
Matuszewski, Jacek
Bola, Łukasz
Szczepanik, Michał
Kossowski, Bartosz
Rutkowski, Paweł
Szwed, Marcin
Emmorey, Karen
Jednoróg, Katarzyna
Marchewka, Artur
author_sort Banaszkiewicz, Anna
collection PubMed
description The neural plasticity underlying language learning is a process rather than a single event. However, the dynamics of training‐induced brain reorganization have rarely been examined, especially using a multimodal magnetic resonance imaging approach, which allows us to study the relationship between functional and structural changes. We focus on sign language acquisition in hearing adults who underwent an 8‐month long course and five neuroimaging sessions. We assessed what neural changes occurred as participants learned a new language in a different modality—as reflected by task‐based activity, connectivity changes, and co‐occurring structural alterations. Major changes in the activity pattern appeared after just 3 months of learning, as indicated by increases in activation within the modality‐independent perisylvian language network, together with increased activation in modality‐dependent parieto‐occipital, visuospatial and motion‐sensitive regions. Despite further learning, no alterations in activation were detected during the following months. However, enhanced coupling between left‐lateralized occipital and inferior frontal regions was observed as the proficiency increased. Furthermore, an increase in gray matter volume was detected in the left inferior frontal gyrus which peaked at the end of learning. Overall, these results showed complexity and temporal distinctiveness of various aspects of brain reorganization associated with learning of new language in different sensory modality.
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spelling pubmed-77760042021-01-07 Multimodal imaging of brain reorganization in hearing late learners of sign language Banaszkiewicz, Anna Matuszewski, Jacek Bola, Łukasz Szczepanik, Michał Kossowski, Bartosz Rutkowski, Paweł Szwed, Marcin Emmorey, Karen Jednoróg, Katarzyna Marchewka, Artur Hum Brain Mapp Research Articles The neural plasticity underlying language learning is a process rather than a single event. However, the dynamics of training‐induced brain reorganization have rarely been examined, especially using a multimodal magnetic resonance imaging approach, which allows us to study the relationship between functional and structural changes. We focus on sign language acquisition in hearing adults who underwent an 8‐month long course and five neuroimaging sessions. We assessed what neural changes occurred as participants learned a new language in a different modality—as reflected by task‐based activity, connectivity changes, and co‐occurring structural alterations. Major changes in the activity pattern appeared after just 3 months of learning, as indicated by increases in activation within the modality‐independent perisylvian language network, together with increased activation in modality‐dependent parieto‐occipital, visuospatial and motion‐sensitive regions. Despite further learning, no alterations in activation were detected during the following months. However, enhanced coupling between left‐lateralized occipital and inferior frontal regions was observed as the proficiency increased. Furthermore, an increase in gray matter volume was detected in the left inferior frontal gyrus which peaked at the end of learning. Overall, these results showed complexity and temporal distinctiveness of various aspects of brain reorganization associated with learning of new language in different sensory modality. John Wiley & Sons, Inc. 2020-10-24 /pmc/articles/PMC7776004/ /pubmed/33098616 http://dx.doi.org/10.1002/hbm.25229 Text en © 2020 The Authors. Human Brain Mapping published by Wiley Periodicals LLC. This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
spellingShingle Research Articles
Banaszkiewicz, Anna
Matuszewski, Jacek
Bola, Łukasz
Szczepanik, Michał
Kossowski, Bartosz
Rutkowski, Paweł
Szwed, Marcin
Emmorey, Karen
Jednoróg, Katarzyna
Marchewka, Artur
Multimodal imaging of brain reorganization in hearing late learners of sign language
title Multimodal imaging of brain reorganization in hearing late learners of sign language
title_full Multimodal imaging of brain reorganization in hearing late learners of sign language
title_fullStr Multimodal imaging of brain reorganization in hearing late learners of sign language
title_full_unstemmed Multimodal imaging of brain reorganization in hearing late learners of sign language
title_short Multimodal imaging of brain reorganization in hearing late learners of sign language
title_sort multimodal imaging of brain reorganization in hearing late learners of sign language
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7776004/
https://www.ncbi.nlm.nih.gov/pubmed/33098616
http://dx.doi.org/10.1002/hbm.25229
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