Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1080/00222895.2015.1134434 http://hdl.handle.net/11449/168711 |
Resumo: | Little is known about the ability of blind people to cross obstacles after they have explored haptically their size and position. Long-term absence of vision may affect spatial cognition in the blind while their extensive experience with the use of haptic information for guidance may lead to compensation strategies. Seven blind and 7 sighted participants (with vision available and blindfolded) walked along a flat pathway and crossed an obstacle after a haptic exploration. Blind and blindfolded subjects used different strategies to cross the obstacle. After the first 20 trials the blindfolded subjects reduced the distance between the foot and the obstacle at the toe-off instant, while the blind behaved as the subjects with full vision. Blind and blindfolded participants showed larger foot clearance than participants with vision. At foot landing the hip was more behind the foot in the blindfolded condition, while there were no differences between the blind and the vision conditions. For several parameters of the obstacle crossing task, blind people were more similar to subjects with full vision indicating that the blind subjects were able to compensate for the lack of vision. |
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Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Explorationblindgaitobstacle crossingtoe clearancevisual informationLittle is known about the ability of blind people to cross obstacles after they have explored haptically their size and position. Long-term absence of vision may affect spatial cognition in the blind while their extensive experience with the use of haptic information for guidance may lead to compensation strategies. Seven blind and 7 sighted participants (with vision available and blindfolded) walked along a flat pathway and crossed an obstacle after a haptic exploration. Blind and blindfolded subjects used different strategies to cross the obstacle. After the first 20 trials the blindfolded subjects reduced the distance between the foot and the obstacle at the toe-off instant, while the blind behaved as the subjects with full vision. Blind and blindfolded participants showed larger foot clearance than participants with vision. At foot landing the hip was more behind the foot in the blindfolded condition, while there were no differences between the blind and the vision conditions. For several parameters of the obstacle crossing task, blind people were more similar to subjects with full vision indicating that the blind subjects were able to compensate for the lack of vision.Biomechatronics Lab. Mechatronics Department Escola Politécnica da Universidade de São PauloNeuroscience and Behavior Institute of Psychology University of São PauloLaboratory of Information Vision and Action (LIVIA) UNESP—State University of São PauloKinesiology Katholieke Universiteit LeuvenLaboratory of Information Vision and Action (LIVIA) UNESP—State University of São PauloUniversidade de São Paulo (USP)Universidade Estadual Paulista (Unesp)Katholieke Universiteit LeuvenForner-Cordero, ArturoGarcia, Valéria D.Rodrigues, Sérgio T. [UNESP]Duysens, Jacques2018-12-11T16:42:40Z2018-12-11T16:42:40Z2016-09-02info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article468-478application/pdfhttp://dx.doi.org/10.1080/00222895.2015.1134434Journal of Motor Behavior, v. 48, n. 5, p. 468-478, 2016.1940-10270022-2895http://hdl.handle.net/11449/16871110.1080/00222895.2015.11344342-s2.0-849731375022-s2.0-84973137502.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Motor Behavior0,617info:eu-repo/semantics/openAccess2023-11-25T06:13:52Zoai:repositorio.unesp.br:11449/168711Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462023-11-25T06:13:52Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration |
title |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration |
spellingShingle |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration Forner-Cordero, Arturo blind gait obstacle crossing toe clearance visual information |
title_short |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration |
title_full |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration |
title_fullStr |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration |
title_full_unstemmed |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration |
title_sort |
Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration |
author |
Forner-Cordero, Arturo |
author_facet |
Forner-Cordero, Arturo Garcia, Valéria D. Rodrigues, Sérgio T. [UNESP] Duysens, Jacques |
author_role |
author |
author2 |
Garcia, Valéria D. Rodrigues, Sérgio T. [UNESP] Duysens, Jacques |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade de São Paulo (USP) Universidade Estadual Paulista (Unesp) Katholieke Universiteit Leuven |
dc.contributor.author.fl_str_mv |
Forner-Cordero, Arturo Garcia, Valéria D. Rodrigues, Sérgio T. [UNESP] Duysens, Jacques |
dc.subject.por.fl_str_mv |
blind gait obstacle crossing toe clearance visual information |
topic |
blind gait obstacle crossing toe clearance visual information |
description |
Little is known about the ability of blind people to cross obstacles after they have explored haptically their size and position. Long-term absence of vision may affect spatial cognition in the blind while their extensive experience with the use of haptic information for guidance may lead to compensation strategies. Seven blind and 7 sighted participants (with vision available and blindfolded) walked along a flat pathway and crossed an obstacle after a haptic exploration. Blind and blindfolded subjects used different strategies to cross the obstacle. After the first 20 trials the blindfolded subjects reduced the distance between the foot and the obstacle at the toe-off instant, while the blind behaved as the subjects with full vision. Blind and blindfolded participants showed larger foot clearance than participants with vision. At foot landing the hip was more behind the foot in the blindfolded condition, while there were no differences between the blind and the vision conditions. For several parameters of the obstacle crossing task, blind people were more similar to subjects with full vision indicating that the blind subjects were able to compensate for the lack of vision. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-09-02 2018-12-11T16:42:40Z 2018-12-11T16:42:40Z |
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://dx.doi.org/10.1080/00222895.2015.1134434 Journal of Motor Behavior, v. 48, n. 5, p. 468-478, 2016. 1940-1027 0022-2895 http://hdl.handle.net/11449/168711 10.1080/00222895.2015.1134434 2-s2.0-84973137502 2-s2.0-84973137502.pdf |
url |
http://dx.doi.org/10.1080/00222895.2015.1134434 http://hdl.handle.net/11449/168711 |
identifier_str_mv |
Journal of Motor Behavior, v. 48, n. 5, p. 468-478, 2016. 1940-1027 0022-2895 10.1080/00222895.2015.1134434 2-s2.0-84973137502 2-s2.0-84973137502.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Motor Behavior 0,617 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
468-478 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797789811431440384 |