The temporal dynamics of visual processing in multiple sclerosis
Autor(a) principal: | |
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Data de Publicação: | 2016 |
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/1822/51964 |
Resumo: | Although the integrity of the visual system is often affected in multiple sclerosis (MS), the potential relationship between the temporal dynamics of visual processing and performance on neuropsychological tests assessing processing speed (PS) remains relatively unexplored. Here, we test if a PS deficit is related to abnormalities within the visual system, rather than impaired higher-level cognitive function. Two groups of participants with MS (1 group with PS deficits and another without) and a healthy control group, matched for age and education, were included. To explore the temporal dynamics of visual processing, we used 2 psychophysical paradigms: attention enhancement/prioritization and rapid serial visual presentation. Visual PS deficits were associated with a decreased capability to detect visual stimuli and a higher limitation in visual temporal-processing capacity. These results suggest that a latent sensorial temporal limitation of the visual system is significantly associated to PS deficits in MS. |
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The temporal dynamics of visual processing in multiple sclerosisMultiple sclerosisProcessing speedVisual systemScience & TechnologySocial SciencesAlthough the integrity of the visual system is often affected in multiple sclerosis (MS), the potential relationship between the temporal dynamics of visual processing and performance on neuropsychological tests assessing processing speed (PS) remains relatively unexplored. Here, we test if a PS deficit is related to abnormalities within the visual system, rather than impaired higher-level cognitive function. Two groups of participants with MS (1 group with PS deficits and another without) and a healthy control group, matched for age and education, were included. To explore the temporal dynamics of visual processing, we used 2 psychophysical paradigms: attention enhancement/prioritization and rapid serial visual presentation. Visual PS deficits were associated with a decreased capability to detect visual stimuli and a higher limitation in visual temporal-processing capacity. These results suggest that a latent sensorial temporal limitation of the visual system is significantly associated to PS deficits in MS.This work was supported by the Foundation for Science and Technology of Portugal with a doctoral fellowship grant (No. SFRH/BD/455591/2008) to SLC. JA is supported by funding from the Foundation for Science and Technology of Portugal Project Grants PTDC/PSI-PCO/114822/2009 and PTDC/MHC-PCN/3575/2012.info:eu-repo/semantics/publishedVersionRoutledgeUniversidade do MinhoCosta, Silvana Maria Lopes daGonçalves, Óscar F.DeLuca, JohnChiaravalloti, NancyChakravarthi, RamakrishnaAlmeida, Jorge Manuel Castelo Branco Albuquerque20162016-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/1822/51964eng2327-90952327-910910.1080/23279095.2015.102015726508328info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-07-21T12:05:28Zoai:repositorium.sdum.uminho.pt:1822/51964Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T18:55:54.391003Repositório 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 |
The temporal dynamics of visual processing in multiple sclerosis |
title |
The temporal dynamics of visual processing in multiple sclerosis |
spellingShingle |
The temporal dynamics of visual processing in multiple sclerosis Costa, Silvana Maria Lopes da Multiple sclerosis Processing speed Visual system Science & Technology Social Sciences |
title_short |
The temporal dynamics of visual processing in multiple sclerosis |
title_full |
The temporal dynamics of visual processing in multiple sclerosis |
title_fullStr |
The temporal dynamics of visual processing in multiple sclerosis |
title_full_unstemmed |
The temporal dynamics of visual processing in multiple sclerosis |
title_sort |
The temporal dynamics of visual processing in multiple sclerosis |
author |
Costa, Silvana Maria Lopes da |
author_facet |
Costa, Silvana Maria Lopes da Gonçalves, Óscar F. DeLuca, John Chiaravalloti, Nancy Chakravarthi, Ramakrishna Almeida, Jorge Manuel Castelo Branco Albuquerque |
author_role |
author |
author2 |
Gonçalves, Óscar F. DeLuca, John Chiaravalloti, Nancy Chakravarthi, Ramakrishna Almeida, Jorge Manuel Castelo Branco Albuquerque |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade do Minho |
dc.contributor.author.fl_str_mv |
Costa, Silvana Maria Lopes da Gonçalves, Óscar F. DeLuca, John Chiaravalloti, Nancy Chakravarthi, Ramakrishna Almeida, Jorge Manuel Castelo Branco Albuquerque |
dc.subject.por.fl_str_mv |
Multiple sclerosis Processing speed Visual system Science & Technology Social Sciences |
topic |
Multiple sclerosis Processing speed Visual system Science & Technology Social Sciences |
description |
Although the integrity of the visual system is often affected in multiple sclerosis (MS), the potential relationship between the temporal dynamics of visual processing and performance on neuropsychological tests assessing processing speed (PS) remains relatively unexplored. Here, we test if a PS deficit is related to abnormalities within the visual system, rather than impaired higher-level cognitive function. Two groups of participants with MS (1 group with PS deficits and another without) and a healthy control group, matched for age and education, were included. To explore the temporal dynamics of visual processing, we used 2 psychophysical paradigms: attention enhancement/prioritization and rapid serial visual presentation. Visual PS deficits were associated with a decreased capability to detect visual stimuli and a higher limitation in visual temporal-processing capacity. These results suggest that a latent sensorial temporal limitation of the visual system is significantly associated to PS deficits in MS. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016 2016-01-01T00:00:00Z |
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/1822/51964 |
url |
http://hdl.handle.net/1822/51964 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
2327-9095 2327-9109 10.1080/23279095.2015.1020157 26508328 |
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 |
Routledge |
publisher.none.fl_str_mv |
Routledge |
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 |
repository.mail.fl_str_mv |
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1799132345796657152 |