To read or not to read: a neurophysiological study
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10071/9721 |
Resumo: | Pure alexia (PA) has been associated with visual deficits or a failure to activate the visual word form area (VWFA). We report a patient with pure alexia due to posterior cortical atrophy, in whom event-related potentials revealed a delay in the P100 component and an absent N170 compared with controls. Furthermore, there was a tendency for a larger delay in P100 latencies associated with incorrectly read words. This suggests that some cases of PA might result from deficits in visual perception, signaled by the P100 early potential which could lead to an inability to consistently activate the VWFA, marked by the absent N170. |
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To read or not to read: a neurophysiological studyAlexiaLetter-by-letter readingPosterior cortical atrophyERPPure alexia (PA) has been associated with visual deficits or a failure to activate the visual word form area (VWFA). We report a patient with pure alexia due to posterior cortical atrophy, in whom event-related potentials revealed a delay in the P100 component and an absent N170 compared with controls. Furthermore, there was a tendency for a larger delay in P100 latencies associated with incorrectly read words. This suggests that some cases of PA might result from deficits in visual perception, signaled by the P100 early potential which could lead to an inability to consistently activate the VWFA, marked by the absent N170.Routledge/Taylor and Francis2015-09-10T17:02:30Z2015-01-01T00:00:00Z20152019-05-10T10:14:46Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10071/9721eng1355-479410.1080/13554794.2015.1013137Mares, I.Custódio, P.Fonseca, J.Bentes, C.Guerreiro, M.Guimarães, N.Martins, I. P.info:eu-repo/semantics/embargoedAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-11-09T17:37:55Zoai:repositorio.iscte-iul.pt:10071/9721Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T22:17:19.498891Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
To read or not to read: a neurophysiological study |
title |
To read or not to read: a neurophysiological study |
spellingShingle |
To read or not to read: a neurophysiological study Mares, I. Alexia Letter-by-letter reading Posterior cortical atrophy ERP |
title_short |
To read or not to read: a neurophysiological study |
title_full |
To read or not to read: a neurophysiological study |
title_fullStr |
To read or not to read: a neurophysiological study |
title_full_unstemmed |
To read or not to read: a neurophysiological study |
title_sort |
To read or not to read: a neurophysiological study |
author |
Mares, I. |
author_facet |
Mares, I. Custódio, P. Fonseca, J. Bentes, C. Guerreiro, M. Guimarães, N. Martins, I. P. |
author_role |
author |
author2 |
Custódio, P. Fonseca, J. Bentes, C. Guerreiro, M. Guimarães, N. Martins, I. P. |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Mares, I. Custódio, P. Fonseca, J. Bentes, C. Guerreiro, M. Guimarães, N. Martins, I. P. |
dc.subject.por.fl_str_mv |
Alexia Letter-by-letter reading Posterior cortical atrophy ERP |
topic |
Alexia Letter-by-letter reading Posterior cortical atrophy ERP |
description |
Pure alexia (PA) has been associated with visual deficits or a failure to activate the visual word form area (VWFA). We report a patient with pure alexia due to posterior cortical atrophy, in whom event-related potentials revealed a delay in the P100 component and an absent N170 compared with controls. Furthermore, there was a tendency for a larger delay in P100 latencies associated with incorrectly read words. This suggests that some cases of PA might result from deficits in visual perception, signaled by the P100 early potential which could lead to an inability to consistently activate the VWFA, marked by the absent N170. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-09-10T17:02:30Z 2015-01-01T00:00:00Z 2015 2019-05-10T10:14:46Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10071/9721 |
url |
http://hdl.handle.net/10071/9721 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1355-4794 10.1080/13554794.2015.1013137 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/embargoedAccess |
eu_rights_str_mv |
embargoedAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Routledge/Taylor and Francis |
publisher.none.fl_str_mv |
Routledge/Taylor and Francis |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799134732159549440 |