Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | letrônica |
Texto Completo: | https://revistaseletronicas.pucrs.br/ojs/index.php/letronica/article/view/16838 |
Resumo: | Semantic verbal fluency tasks (SVF) evaluate the ability to generate words from a given criterion in a specified time; these tasks allow for the investigation of language, memory and executive functions. This study aimed to investigate the performance of right hemisphere (RH) post stroke adults in an SVF task. Eleven adults with RH lesion and eleven healthy adults, matched by sex, education and age, were investigated. The participants completed an SVF task (clothes names); the total number of words, clustering and switching variables, and the conformation of semantic networks were measured through computational analysis. We found significant statistical differences in the total number of words (Z score). Topographic analysis of graphs showed a tendency toward smaller semantic networks in the RH lesion group compared with controls. Case series analyzes showed four individuals with deficits in the total number of words and in switching. These participants had predominantly frontal lobe and subcortical lesions, which indicates the interference of lesion-specific locations in the use of SVF strategies. The qualitative analyses presented are groundbreaking for the Brazilian context. We also note the importance of using comparisons between groups and case series analyzes in cognitive neuropsychology investigations. |
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Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere StrokeEstratégias de evocação lexical com critério semântico em adultos após acidente vascular cerebral no hemisfério direitoFunções executivasHemisfério cerebral direitoAnálise computacionalNeuropsicologia.Semantic verbal fluency tasks (SVF) evaluate the ability to generate words from a given criterion in a specified time; these tasks allow for the investigation of language, memory and executive functions. This study aimed to investigate the performance of right hemisphere (RH) post stroke adults in an SVF task. Eleven adults with RH lesion and eleven healthy adults, matched by sex, education and age, were investigated. The participants completed an SVF task (clothes names); the total number of words, clustering and switching variables, and the conformation of semantic networks were measured through computational analysis. We found significant statistical differences in the total number of words (Z score). Topographic analysis of graphs showed a tendency toward smaller semantic networks in the RH lesion group compared with controls. Case series analyzes showed four individuals with deficits in the total number of words and in switching. These participants had predominantly frontal lobe and subcortical lesions, which indicates the interference of lesion-specific locations in the use of SVF strategies. The qualitative analyses presented are groundbreaking for the Brazilian context. We also note the importance of using comparisons between groups and case series analyzes in cognitive neuropsychology investigations.Tarefas de fluência verbal semântica (FVS) avaliam a capacidade de gerar palavras a partir de um determinado critério e em um tempo específico, permitindo investigar habilidades como linguagem, memória e funções executivas. O objetivo deste estudo foi analisar o desempenho de adultos que sofreram acidente vascular cerebral no hemisfério direito (HD) em uma tarefa de FVS. Foram avaliados 11 adultos com lesão no HD e 11 neurologicamente saudáveis, emparelhados por sexo, idade e escolaridade. Os participantes responderam uma tarefa de FVS (roupas e vestimentas), sendo mensurados o número total de palavras evocadas, variáveis de clustering e switching e a conformação de redes semânticas, por meio de análise computacional. Houve diferenças estatisticamente significativas apenas no número de palavras verbalizadas (escore Z). As análises topográficas de grafos demonstraram tendência a redes semânticas menores no grupo com lesão no HD, em relação aos controles. Análises de série de casos indicaram quatro indivíduos com escores deficitários no número de palavras e na variável switching. Esses participantes apresentavam lesões subcorticais e predominantemente frontais, sugerindo que a localização específica da lesão tem interferência na utilização de estratégias de evocação lexical. Destaca-se o caráter pioneiro deste estudo no contexto brasileiro e a importância da utilização de comparações entre grupos e série de casos em investigações na neuropsicologia cognitiva.Editora da PUCRS - ediPUCRS2014-07-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://revistaseletronicas.pucrs.br/ojs/index.php/letronica/article/view/1683810.15448/1984-4301.2014.1.16838Letrônica; Vol. 7 No. 1 (2014): Psicolinguística & Escritas migrantes na literatura contemporânea; 325-347Letrônica; v. 7 n. 1 (2014): Psicolinguística & Escritas migrantes na literatura contemporânea; 325-3471984-430110.15448/1984-4301.2014.1reponame:letrônicainstname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)instacron:PUC_RSporhttps://revistaseletronicas.pucrs.br/ojs/index.php/letronica/article/view/16838/11537Becker, NataliaMüller, Juliana de LimaRodrigues, Jaqueline de CarvalhoVillavicencio, AlineSalles, Jerusa Fumagalli deinfo:eu-repo/semantics/openAccess2017-02-24T23:45:10Zoai:ojs.revistaseletronicas.pucrs.br:article/16838Revistahttps://revistaseletronicas.pucrs.br/ojs/index.php/letronicaPRIhttps://revistaseletronicas.pucrs.br/ojs/index.php/letronica/oailetronica@pucrs.br||ivanetemileski@gmail.com1984-43011984-4301opendoar:2017-02-24T23:45:10letrônica - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS)false |
dc.title.none.fl_str_mv |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke Estratégias de evocação lexical com critério semântico em adultos após acidente vascular cerebral no hemisfério direito |
title |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke |
spellingShingle |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke Becker, Natalia Funções executivas Hemisfério cerebral direito Análise computacional Neuropsicologia. |
title_short |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke |
title_full |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke |
title_fullStr |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke |
title_full_unstemmed |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke |
title_sort |
Semantic Verbal Fluency Strategies In Patients After A Right-Hemisphere Stroke |
author |
Becker, Natalia |
author_facet |
Becker, Natalia Müller, Juliana de Lima Rodrigues, Jaqueline de Carvalho Villavicencio, Aline Salles, Jerusa Fumagalli de |
author_role |
author |
author2 |
Müller, Juliana de Lima Rodrigues, Jaqueline de Carvalho Villavicencio, Aline Salles, Jerusa Fumagalli de |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Becker, Natalia Müller, Juliana de Lima Rodrigues, Jaqueline de Carvalho Villavicencio, Aline Salles, Jerusa Fumagalli de |
dc.subject.por.fl_str_mv |
Funções executivas Hemisfério cerebral direito Análise computacional Neuropsicologia. |
topic |
Funções executivas Hemisfério cerebral direito Análise computacional Neuropsicologia. |
description |
Semantic verbal fluency tasks (SVF) evaluate the ability to generate words from a given criterion in a specified time; these tasks allow for the investigation of language, memory and executive functions. This study aimed to investigate the performance of right hemisphere (RH) post stroke adults in an SVF task. Eleven adults with RH lesion and eleven healthy adults, matched by sex, education and age, were investigated. The participants completed an SVF task (clothes names); the total number of words, clustering and switching variables, and the conformation of semantic networks were measured through computational analysis. We found significant statistical differences in the total number of words (Z score). Topographic analysis of graphs showed a tendency toward smaller semantic networks in the RH lesion group compared with controls. Case series analyzes showed four individuals with deficits in the total number of words and in switching. These participants had predominantly frontal lobe and subcortical lesions, which indicates the interference of lesion-specific locations in the use of SVF strategies. The qualitative analyses presented are groundbreaking for the Brazilian context. We also note the importance of using comparisons between groups and case series analyzes in cognitive neuropsychology investigations. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-07-09 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistaseletronicas.pucrs.br/ojs/index.php/letronica/article/view/16838 10.15448/1984-4301.2014.1.16838 |
url |
https://revistaseletronicas.pucrs.br/ojs/index.php/letronica/article/view/16838 |
identifier_str_mv |
10.15448/1984-4301.2014.1.16838 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistaseletronicas.pucrs.br/ojs/index.php/letronica/article/view/16838/11537 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Editora da PUCRS - ediPUCRS |
publisher.none.fl_str_mv |
Editora da PUCRS - ediPUCRS |
dc.source.none.fl_str_mv |
Letrônica; Vol. 7 No. 1 (2014): Psicolinguística & Escritas migrantes na literatura contemporânea; 325-347 Letrônica; v. 7 n. 1 (2014): Psicolinguística & Escritas migrantes na literatura contemporânea; 325-347 1984-4301 10.15448/1984-4301.2014.1 reponame:letrônica instname:Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) instacron:PUC_RS |
instname_str |
Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
instacron_str |
PUC_RS |
institution |
PUC_RS |
reponame_str |
letrônica |
collection |
letrônica |
repository.name.fl_str_mv |
letrônica - Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) |
repository.mail.fl_str_mv |
letronica@pucrs.br||ivanetemileski@gmail.com |
_version_ |
1799128596540817408 |