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Left‐handed musicians show a higher probability of atypical cerebral dominance for language

Music processing and right hemispheric language lateralization share a common network in the right auditory cortex and its frontal connections. Given that the development of hemispheric language dominance takes place over several years, this study tested whether musicianship could increase the proba...

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Autores principales: Villar‐Rodríguez, Esteban, Palomar‐García, María‐Ángeles, Hernández, Mireia, Adrián‐Ventura, Jesús, Olcina‐Sempere, Gustau, Parcet, María‐Antònia, Ávila, César
Formato: Online Artículo Texto
Lenguaje:English
Publicado: John Wiley & Sons, Inc. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7268010/
https://www.ncbi.nlm.nih.gov/pubmed/32034834
http://dx.doi.org/10.1002/hbm.24929
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author Villar‐Rodríguez, Esteban
Palomar‐García, María‐Ángeles
Hernández, Mireia
Adrián‐Ventura, Jesús
Olcina‐Sempere, Gustau
Parcet, María‐Antònia
Ávila, César
author_facet Villar‐Rodríguez, Esteban
Palomar‐García, María‐Ángeles
Hernández, Mireia
Adrián‐Ventura, Jesús
Olcina‐Sempere, Gustau
Parcet, María‐Antònia
Ávila, César
author_sort Villar‐Rodríguez, Esteban
collection PubMed
description Music processing and right hemispheric language lateralization share a common network in the right auditory cortex and its frontal connections. Given that the development of hemispheric language dominance takes place over several years, this study tested whether musicianship could increase the probability of observing right language dominance in left‐handers. Using a classic fMRI language paradigm, results showed that atypical lateralization was more predominant in musicians (40%) than in nonmusicians (5%). Comparison of left‐handers with typical left and atypical right lateralization revealed that: (a) atypical cases presented a thicker right pars triangularis and more gyrified left Heschl's gyrus; and (b) the right pars triangularis of atypical cases showed a stronger intra‐hemispheric functional connectivity with the right angular gyrus, but a weaker interhemispheric functional connectivity with part of the left Broca's area. Thus, musicianship is the first known factor related to a higher prevalence of atypical language dominance in healthy left‐handed individuals. We suggest that differences in the frontal and temporal cortex might act as shared predisposing factors to both musicianship and atypical language lateralization.
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spelling pubmed-72680102020-06-12 Left‐handed musicians show a higher probability of atypical cerebral dominance for language Villar‐Rodríguez, Esteban Palomar‐García, María‐Ángeles Hernández, Mireia Adrián‐Ventura, Jesús Olcina‐Sempere, Gustau Parcet, María‐Antònia Ávila, César Hum Brain Mapp Research Articles Music processing and right hemispheric language lateralization share a common network in the right auditory cortex and its frontal connections. Given that the development of hemispheric language dominance takes place over several years, this study tested whether musicianship could increase the probability of observing right language dominance in left‐handers. Using a classic fMRI language paradigm, results showed that atypical lateralization was more predominant in musicians (40%) than in nonmusicians (5%). Comparison of left‐handers with typical left and atypical right lateralization revealed that: (a) atypical cases presented a thicker right pars triangularis and more gyrified left Heschl's gyrus; and (b) the right pars triangularis of atypical cases showed a stronger intra‐hemispheric functional connectivity with the right angular gyrus, but a weaker interhemispheric functional connectivity with part of the left Broca's area. Thus, musicianship is the first known factor related to a higher prevalence of atypical language dominance in healthy left‐handed individuals. We suggest that differences in the frontal and temporal cortex might act as shared predisposing factors to both musicianship and atypical language lateralization. John Wiley & Sons, Inc. 2020-02-07 /pmc/articles/PMC7268010/ /pubmed/32034834 http://dx.doi.org/10.1002/hbm.24929 Text en © 2020 The Authors. Human Brain Mapping published by Wiley Periodicals, Inc. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Articles
Villar‐Rodríguez, Esteban
Palomar‐García, María‐Ángeles
Hernández, Mireia
Adrián‐Ventura, Jesús
Olcina‐Sempere, Gustau
Parcet, María‐Antònia
Ávila, César
Left‐handed musicians show a higher probability of atypical cerebral dominance for language
title Left‐handed musicians show a higher probability of atypical cerebral dominance for language
title_full Left‐handed musicians show a higher probability of atypical cerebral dominance for language
title_fullStr Left‐handed musicians show a higher probability of atypical cerebral dominance for language
title_full_unstemmed Left‐handed musicians show a higher probability of atypical cerebral dominance for language
title_short Left‐handed musicians show a higher probability of atypical cerebral dominance for language
title_sort left‐handed musicians show a higher probability of atypical cerebral dominance for language
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7268010/
https://www.ncbi.nlm.nih.gov/pubmed/32034834
http://dx.doi.org/10.1002/hbm.24929
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