Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice

dc.contributor.authorRodrigues, Sérgio Tosi [UNESP]
dc.contributor.authorGalvão, Nicole Chiba [UNESP]
dc.contributor.authorGotardi, Gisele Chiozi [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2016-03-02T13:02:46Z
dc.date.available2016-03-02T13:02:46Z
dc.date.issued2014
dc.description.abstractThe aim of the present study was to determine the effects of motor practice on visual judgments of apertures for wheelchair locomotion and the visual control of wheelchair locomotion in wheelchair users who had no prior experience. Sixteen young adults, divided into motor practice and control groups, visually judged varying apertures as passable or impassable under walking, pre-practice, and post-practice conditions. The motor practice group underwent additional motor practice in 10 blocks of five trials each, moving the wheelchair through different apertures. The relative perceptual boundary was determined based on judgment data and kinematic variables that were calculated from videos of the motor practice trials. The participants overestimated the space needed under the walking condition and underestimated it under the wheelchair conditions, independent of group. The accuracy of judgments improved from the pre-practice to post-practice condition in both groups. During motor practice, the participants adaptively modulated wheelchair locomotion, adjusting it to the apertures available. The present findings from a priori visual judgments of space and the continuous judgments that are necessary for wheelchair approach and passage through apertures appear to support the dissociation between processes of perception and action.en
dc.description.affiliationUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Ciências (FC), Departamento de Educação Física, Laboratório de Informação, Visão e Ação (LIVIA), Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Vargem Limpa, CEP 17033360, Bauru, SP, Brasil
dc.description.affiliationUnespUniversidade Estadual Paulista Júlio de Mesquita Filho (UNESP), Faculdade de Ciências (FC), Departamento de Educação Física, Laboratório de Informação, Visão e Ação (LIVIA), Av. Eng. Luiz Edmundo Carrijo Coube, 14-01, Vargem Limpa, CEP 17033360, Bauru, SP, Brasil
dc.format.extent331-340
dc.identifierhttp://dx.doi.org/10.3922/j.psns.2014.040
dc.identifier.citationPsychology & Neuroscience, v. 7, n. 3, p. 331-340, 2014.
dc.identifier.doi10.3922/j.psns.2014.040
dc.identifier.fileISSN1984-3054-2014-07-03-331-340.pdf
dc.identifier.issn1984-3054
dc.identifier.lattes3519033218606454
dc.identifier.urihttp://hdl.handle.net/11449/135441
dc.language.isoeng
dc.relation.ispartofPsychology & Neuroscience
dc.relation.ispartofsjr0,245
dc.rights.accessRightsAcesso aberto
dc.sourceCurrículo Lattes
dc.subjectVisual judgmenten
dc.subjectAperture estimationen
dc.subjectTime-to-passageen
dc.subjectWheelchairen
dc.subjectLocomotionen
dc.titleVisual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practiceen
dc.typeArtigo
unesp.author.lattes3519033218606454
unesp.campusUniversidade Estadual Paulista (Unesp), Faculdade de Ciências, Baurupt
unesp.departmentEducação Física - FCpt

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