Semantic processing in bilingual aphasia: evidence of language dependency

Individuals with aphasia frequently show lexical retrieval deficits due to increased interference of semantically related competitors, a phenomenon that can be observed in tasks such as naming pictures grouped by semantic category. These deficits are explained in terms of impaired semantic control,...

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Detalles Bibliográficos
Autores: Calabria, Marco, Grunden, Nicholas, Serra, Mariona, García Sánchez, Carmen, Costa, Albert, 1970-
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2019
País:España
Institución:Universitat Pompeu Fabra
Repositorio:Repositorio Digital de la UPF
OAI Identifier:oai:repositori.upf.edu:10230/55303
Acceso en línea:http://hdl.handle.net/10230/55303
http://dx.doi.org/10.3389/fnhum.2019.00205
Access Level:acceso abierto
Palabra clave:Bilingual aphasia
Semantic control
Cycling naming
Language dependency
Executive control
Language control
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dc.title.none.fl_str_mv Semantic processing in bilingual aphasia: evidence of language dependency
title Semantic processing in bilingual aphasia: evidence of language dependency
spellingShingle Semantic processing in bilingual aphasia: evidence of language dependency
Calabria, Marco
Bilingual aphasia
Semantic control
Cycling naming
Language dependency
Executive control
Language control
title_short Semantic processing in bilingual aphasia: evidence of language dependency
title_full Semantic processing in bilingual aphasia: evidence of language dependency
title_fullStr Semantic processing in bilingual aphasia: evidence of language dependency
title_full_unstemmed Semantic processing in bilingual aphasia: evidence of language dependency
title_sort Semantic processing in bilingual aphasia: evidence of language dependency
dc.creator.none.fl_str_mv Calabria, Marco
Grunden, Nicholas
Serra, Mariona
García Sánchez, Carmen
Costa, Albert, 1970-
author Calabria, Marco
author_facet Calabria, Marco
Grunden, Nicholas
Serra, Mariona
García Sánchez, Carmen
Costa, Albert, 1970-
author_role author
author2 Grunden, Nicholas
Serra, Mariona
García Sánchez, Carmen
Costa, Albert, 1970-
author2_role author
author
author
author
dc.subject.none.fl_str_mv Bilingual aphasia
Semantic control
Cycling naming
Language dependency
Executive control
Language control
topic Bilingual aphasia
Semantic control
Cycling naming
Language dependency
Executive control
Language control
description Individuals with aphasia frequently show lexical retrieval deficits due to increased interference of semantically related competitors, a phenomenon that can be observed in tasks such as naming pictures grouped by semantic category. These deficits are explained in terms of impaired semantic control, a set of abilities that are to some extent dependent upon executive control (EC). However, the extent to which semantic control abilities can be affected in a second and non-dominant language has not been extensively explored. Additionally, findings in healthy individuals are inconclusive regarding the degree to which semantic processing is shared between languages. In this study, we explored the effect of brain damage on semantic processing by comparing the performance of bilingual individuals with aphasia on tasks involving semantic control during word production and comprehension. Furthermore, we explored whether semantic deficits are related to domain-general EC deficits. First, we investigated the naming performance of Catalan–Spanish bilinguals with fluent aphasia and age-matched healthy controls on a semantically blocked cyclic naming task in each of their two languages (Catalan and Spanish). This task measured semantic interference in terms of the difference in naming latencies between pictures grouped by the same semantic category or different categories. Second, we explored whether lexical deficits extend to comprehension by testing participants in a word-picture matching task during a mixed language condition. Third, we used a conflict monitoring task to explore the presence of EC deficits in patients with aphasia. We found two main results. First, in both language tasks, bilingual patients’ performances were more affected than those of healthy controls when they performed the task in their non-dominant language. Second, there was a significant correlation between the speed of processing on the EC task and the magnitude of the semantic interference effect exclusively in the non-dominant language. Taken together, these results suggest that lexical retrieval may be selectively impaired in bilinguals within those conditions where semantic competition is higher, i.e.,- in their non-dominant language; this could possibly be explained by an excessive amount of inhibition placed upon this language. Moreover, lexico-semantic impairments seem to be at least somewhat related to conflict monitoring deficits, suggesting a certain degree of overlap between EC and semantic control.
publishDate 2019
dc.date.none.fl_str_mv 2019
2023
2023
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dc.identifier.none.fl_str_mv http://hdl.handle.net/10230/55303
http://dx.doi.org/10.3389/fnhum.2019.00205
url http://hdl.handle.net/10230/55303
http://dx.doi.org/10.3389/fnhum.2019.00205
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Frontiers in Human Neuroscience. 2019 Jun 14;13:205
info:eu-repo/grantAgreement/EC/FP7/613465
info:eu-repo/grantAgreement/ES/2PE/PSI2017-87784-R
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info:eu-repo/semantics/openAccess
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dc.source.none.fl_str_mv reponame:Repositorio Digital de la UPF
instname:Universitat Pompeu Fabra
instname_str Universitat Pompeu Fabra
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spelling Semantic processing in bilingual aphasia: evidence of language dependencyCalabria, MarcoGrunden, NicholasSerra, MarionaGarcía Sánchez, CarmenCosta, Albert, 1970-Bilingual aphasiaSemantic controlCycling namingLanguage dependencyExecutive controlLanguage controlIndividuals with aphasia frequently show lexical retrieval deficits due to increased interference of semantically related competitors, a phenomenon that can be observed in tasks such as naming pictures grouped by semantic category. These deficits are explained in terms of impaired semantic control, a set of abilities that are to some extent dependent upon executive control (EC). However, the extent to which semantic control abilities can be affected in a second and non-dominant language has not been extensively explored. Additionally, findings in healthy individuals are inconclusive regarding the degree to which semantic processing is shared between languages. In this study, we explored the effect of brain damage on semantic processing by comparing the performance of bilingual individuals with aphasia on tasks involving semantic control during word production and comprehension. Furthermore, we explored whether semantic deficits are related to domain-general EC deficits. First, we investigated the naming performance of Catalan–Spanish bilinguals with fluent aphasia and age-matched healthy controls on a semantically blocked cyclic naming task in each of their two languages (Catalan and Spanish). This task measured semantic interference in terms of the difference in naming latencies between pictures grouped by the same semantic category or different categories. Second, we explored whether lexical deficits extend to comprehension by testing participants in a word-picture matching task during a mixed language condition. Third, we used a conflict monitoring task to explore the presence of EC deficits in patients with aphasia. We found two main results. First, in both language tasks, bilingual patients’ performances were more affected than those of healthy controls when they performed the task in their non-dominant language. Second, there was a significant correlation between the speed of processing on the EC task and the magnitude of the semantic interference effect exclusively in the non-dominant language. Taken together, these results suggest that lexical retrieval may be selectively impaired in bilinguals within those conditions where semantic competition is higher, i.e.,- in their non-dominant language; this could possibly be explained by an excessive amount of inhibition placed upon this language. Moreover, lexico-semantic impairments seem to be at least somewhat related to conflict monitoring deficits, suggesting a certain degree of overlap between EC and semantic control.MC was supported by the postdoctoral Ramón y Cajal fellowship (RYC-2013-14013) and Agencia Estatal de Investigación (AEI, National Research Agency) and Fondo Europeo de Desarrollo Regional (FEDER, European Regional Development Fund) under project PSI2017-87784-R. This work was also supported by grants from the Catalan government (2017 SGR 268 and 2009 SGR 1521) and the European Union’s Seventh Framework Program for Research (No. 613465).Frontiers202320232019info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/pdfhttp://hdl.handle.net/10230/55303http://dx.doi.org/10.3389/fnhum.2019.00205reponame:Repositorio Digital de la UPFinstname:Universitat Pompeu FabraInglésFrontiers in Human Neuroscience. 2019 Jun 14;13:205info:eu-repo/grantAgreement/EC/FP7/613465info:eu-repo/grantAgreement/ES/2PE/PSI2017-87784-R© 2019 Calabria, Grunden, Serra, García-Sánchez and Costa. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.http://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositori.upf.edu:10230/553032026-06-12T07:21:37Z
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