Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients

Neural basis of language switching and the cognitive models of bilingualism remain controversial. We explored the functional neuroanatomy of language switching implementing a new multimodal protocol assessing neuropsychological, functional magnetic resonance and intraoperative electrical stimulation...

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Autores: Sierpowska, Joanna, Fernandez-Coello, Alejandro, Gómez Andrés, Alba, Camins, Àngels, Castañer, Sara, Juncadella i Puig, Montserrat, Gabarrós, Andreu, Rodríguez Fornells, Antoni
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2018
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/218069
Acceso en línea:https://hdl.handle.net/2445/218069
Access Level:acceso abierto
Palabra clave:Estimulació elèctrica
Tumors cerebrals
Mapatge del cervell
Lòbul frontal
Electric stimulation
Brain tumors
Brain mapping
Frontal lobe
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spelling Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patientsSierpowska, JoannaFernandez-Coello, AlejandroGómez Andrés, AlbaCamins, ÀngelsCastañer, SaraJuncadella i Puig, MontserratGabarrós, AndreuRodríguez Fornells, AntoniEstimulació elèctricaTumors cerebralsMapatge del cervellLòbul frontalElectric stimulationBrain tumorsBrain mappingFrontal lobeNeural basis of language switching and the cognitive models of bilingualism remain controversial. We explored the functional neuroanatomy of language switching implementing a new multimodal protocol assessing neuropsychological, functional magnetic resonance and intraoperative electrical stimulation mapping results.A prospective series of 9 Spanish-Catalan bilingual candidates for awake brain surgery underwent a specific language switching paradigm implemented both before and after surgery, throughout the electrical stimulation procedure and during functional magnetic resonance both pre- and postoperatively. All patients were harboring left-hemispheric intrinsic brain lesions and were presenting functional language-related activations within the affected hemisphere.Language functional maps were reconstructed on the basis of the intraoperative electrical stimulation results and compared to the functional magnetic resonance findings. Single language-naming sites (Spanish and Catalan), as well as language switching naming sites were detected by electrical stimulation mapping in 8 patients (in one patient only Spanish related sites were detected). Single naming points outnumbered the switching points and did not overlap with each other. Within the frontal lobe, the single language naming sites were found significantly more frequently within the inferior frontal gyrus as compared to the middle frontal gyrus [X-2 (1) = 20.3, p < .001]. Contrarily, switching naming sites were distributed across the middle frontal gyrus significantly more often than within the inferior frontal gyrus [X-2 (1) = 4.1, p = .043]. Notably, there was not always an overlap between functional magnetic resonance and electrical stimulation mapping findings. After surgery, patients did not report involuntary language switching and their neuropsychological scores did not differ significantly from the pre-surgical examinations. Our results suggest a functional division of the frontal cortex between naming and language switching functions, supporting that non-language specific cognitive control prefrontal regions (middle frontal gyrus) are essential to maintain an effective communication together with the classical language-related sites (inferior frontal gyms).Elsevier Masson SAS2025202520182025info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion35 p.application/pdfhttps://hdl.handle.net/2445/218069Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.cortex.2017.10.017Cortex, 2018, vol. 99, p. 78-92https://doi.org/10.1016/j.cortex.2017.10.017(c) Elsevier Masson SAS, 2018info:eu-repo/semantics/openAccessoai:recercat.cat:2445/2180692026-05-29T05:05:01Z
dc.title.none.fl_str_mv Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
title Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
spellingShingle Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
Sierpowska, Joanna
Estimulació elèctrica
Tumors cerebrals
Mapatge del cervell
Lòbul frontal
Electric stimulation
Brain tumors
Brain mapping
Frontal lobe
title_short Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
title_full Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
title_fullStr Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
title_full_unstemmed Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
title_sort Involvement of the middle frontal gyrus in language switching as revealed by electrical stimulation mapping and functional magnetic resonance imaging in bilingual brain tumor patients
dc.creator.none.fl_str_mv Sierpowska, Joanna
Fernandez-Coello, Alejandro
Gómez Andrés, Alba
Camins, Àngels
Castañer, Sara
Juncadella i Puig, Montserrat
Gabarrós, Andreu
Rodríguez Fornells, Antoni
author Sierpowska, Joanna
author_facet Sierpowska, Joanna
Fernandez-Coello, Alejandro
Gómez Andrés, Alba
Camins, Àngels
Castañer, Sara
Juncadella i Puig, Montserrat
Gabarrós, Andreu
Rodríguez Fornells, Antoni
author_role author
author2 Fernandez-Coello, Alejandro
Gómez Andrés, Alba
Camins, Àngels
Castañer, Sara
Juncadella i Puig, Montserrat
Gabarrós, Andreu
Rodríguez Fornells, Antoni
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Estimulació elèctrica
Tumors cerebrals
Mapatge del cervell
Lòbul frontal
Electric stimulation
Brain tumors
Brain mapping
Frontal lobe
topic Estimulació elèctrica
Tumors cerebrals
Mapatge del cervell
Lòbul frontal
Electric stimulation
Brain tumors
Brain mapping
Frontal lobe
description Neural basis of language switching and the cognitive models of bilingualism remain controversial. We explored the functional neuroanatomy of language switching implementing a new multimodal protocol assessing neuropsychological, functional magnetic resonance and intraoperative electrical stimulation mapping results.A prospective series of 9 Spanish-Catalan bilingual candidates for awake brain surgery underwent a specific language switching paradigm implemented both before and after surgery, throughout the electrical stimulation procedure and during functional magnetic resonance both pre- and postoperatively. All patients were harboring left-hemispheric intrinsic brain lesions and were presenting functional language-related activations within the affected hemisphere.Language functional maps were reconstructed on the basis of the intraoperative electrical stimulation results and compared to the functional magnetic resonance findings. Single language-naming sites (Spanish and Catalan), as well as language switching naming sites were detected by electrical stimulation mapping in 8 patients (in one patient only Spanish related sites were detected). Single naming points outnumbered the switching points and did not overlap with each other. Within the frontal lobe, the single language naming sites were found significantly more frequently within the inferior frontal gyrus as compared to the middle frontal gyrus [X-2 (1) = 20.3, p < .001]. Contrarily, switching naming sites were distributed across the middle frontal gyrus significantly more often than within the inferior frontal gyrus [X-2 (1) = 4.1, p = .043]. Notably, there was not always an overlap between functional magnetic resonance and electrical stimulation mapping findings. After surgery, patients did not report involuntary language switching and their neuropsychological scores did not differ significantly from the pre-surgical examinations. Our results suggest a functional division of the frontal cortex between naming and language switching functions, supporting that non-language specific cognitive control prefrontal regions (middle frontal gyrus) are essential to maintain an effective communication together with the classical language-related sites (inferior frontal gyms).
publishDate 2018
dc.date.none.fl_str_mv 2018
2025
2025
2025
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/218069
url https://hdl.handle.net/2445/218069
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.cortex.2017.10.017
Cortex, 2018, vol. 99, p. 78-92
https://doi.org/10.1016/j.cortex.2017.10.017
dc.rights.none.fl_str_mv (c) Elsevier Masson SAS, 2018
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) Elsevier Masson SAS, 2018
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 35 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier Masson SAS
publisher.none.fl_str_mv Elsevier Masson SAS
dc.source.none.fl_str_mv Articles publicats en revistes (Cognició, Desenvolupament i Psicologia de l'Educació)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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