Obstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Exploration

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dc.contributor.authorForner-Cordero, Arturo
dc.contributor.authorGarcia, Valéria D.
dc.contributor.authorRodrigues, Sérgio T. [UNESP]
dc.contributor.authorDuysens, Jacques
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionKatholieke Universiteit Leuven
dc.date.accessioned2018-12-11T16:42:40Z
dc.date.available2018-12-11T16:42:40Z
dc.date.issued2016-09-02
dc.description.abstractLittle 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.en
dc.description.affiliationBiomechatronics Lab. Mechatronics Department Escola Politécnica da Universidade de São Paulo
dc.description.affiliationNeuroscience and Behavior Institute of Psychology University of São Paulo
dc.description.affiliationLaboratory of Information Vision and Action (LIVIA) UNESP—State University of São Paulo
dc.description.affiliationKinesiology Katholieke Universiteit Leuven
dc.description.affiliationUnespLaboratory of Information Vision and Action (LIVIA) UNESP—State University of São Paulo
dc.format.extent468-478
dc.identifierhttp://dx.doi.org/10.1080/00222895.2015.1134434
dc.identifier.citationJournal of Motor Behavior, v. 48, n. 5, p. 468-478, 2016.
dc.identifier.doi10.1080/00222895.2015.1134434
dc.identifier.file2-s2.0-84973137502.pdf
dc.identifier.issn1940-1027
dc.identifier.issn0022-2895
dc.identifier.scopus2-s2.0-84973137502
dc.identifier.urihttp://hdl.handle.net/11449/168711
dc.language.isoeng
dc.relation.ispartofJournal of Motor Behavior
dc.relation.ispartofsjr0,617
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectblind
dc.subjectgait
dc.subjectobstacle crossing
dc.subjecttoe clearance
dc.subjectvisual information
dc.titleObstacle Crossing Differences Between Blind and Blindfolded Subjects After Haptic Explorationen
dc.typeArtigo

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