Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.3922/j.psns.2014.040 http://hdl.handle.net/11449/135441 |
Resumo: | The 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. |
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Repositório Institucional da UNESP |
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Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practiceVisual judgmentAperture estimationTime-to-passageWheelchairLocomotionThe 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.Universidade 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, BrasilUniversidade 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, BrasilUniversidade Estadual Paulista (Unesp)Rodrigues, Sérgio Tosi [UNESP]Galvão, Nicole Chiba [UNESP]Gotardi, Gisele Chiozi [UNESP]2016-03-02T13:02:46Z2016-03-02T13:02:46Z2014info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article331-340application/pdfhttp://dx.doi.org/10.3922/j.psns.2014.040Psychology & Neuroscience, v. 7, n. 3, p. 331-340, 2014.1984-3054http://hdl.handle.net/11449/13544110.3922/j.psns.2014.040ISSN1984-3054-2014-07-03-331-340.pdf3519033218606454Currículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPsychology & Neuroscience0,245info:eu-repo/semantics/openAccess2024-04-24T18:53:20Zoai:repositorio.unesp.br:11449/135441Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-04-24T18:53:20Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice |
title |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice |
spellingShingle |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice Rodrigues, Sérgio Tosi [UNESP] Visual judgment Aperture estimation Time-to-passage Wheelchair Locomotion |
title_short |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice |
title_full |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice |
title_fullStr |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice |
title_full_unstemmed |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice |
title_sort |
Visual estimation of apertures for wheelchair locomotion in novices: perceptual judgment and motor practice |
author |
Rodrigues, Sérgio Tosi [UNESP] |
author_facet |
Rodrigues, Sérgio Tosi [UNESP] Galvão, Nicole Chiba [UNESP] Gotardi, Gisele Chiozi [UNESP] |
author_role |
author |
author2 |
Galvão, Nicole Chiba [UNESP] Gotardi, Gisele Chiozi [UNESP] |
author2_role |
author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Rodrigues, Sérgio Tosi [UNESP] Galvão, Nicole Chiba [UNESP] Gotardi, Gisele Chiozi [UNESP] |
dc.subject.por.fl_str_mv |
Visual judgment Aperture estimation Time-to-passage Wheelchair Locomotion |
topic |
Visual judgment Aperture estimation Time-to-passage Wheelchair Locomotion |
description |
The 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. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014 2016-03-02T13:02:46Z 2016-03-02T13:02:46Z |
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://dx.doi.org/10.3922/j.psns.2014.040 Psychology & Neuroscience, v. 7, n. 3, p. 331-340, 2014. 1984-3054 http://hdl.handle.net/11449/135441 10.3922/j.psns.2014.040 ISSN1984-3054-2014-07-03-331-340.pdf 3519033218606454 |
url |
http://dx.doi.org/10.3922/j.psns.2014.040 http://hdl.handle.net/11449/135441 |
identifier_str_mv |
Psychology & Neuroscience, v. 7, n. 3, p. 331-340, 2014. 1984-3054 10.3922/j.psns.2014.040 ISSN1984-3054-2014-07-03-331-340.pdf 3519033218606454 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Psychology & Neuroscience 0,245 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
331-340 application/pdf |
dc.source.none.fl_str_mv |
Currículo Lattes 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_ |
1803046658465857536 |