Synchrony of gaze and stepping patterns in people with Parkinson's disease
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/10.1016/j.bbr.2016.04.010 http://hdl.handle.net/11449/168551 |
Resumo: | The aim of the present study was to test the hypothesis that people with Parkinson's disease (PD) are more dependent than healthy individuals on visual information in an on-line manner to guarantee accurate foot placement into an intended stepping target. Patients with PD and age-matched healthy participants walked along a pathway and were required to step onto either one or two targets during the walk trial. Outcome measures included absolute error (accuracy) and error variability (precision) of foot placement onto the first target, and the time interval between the gaze transfer away from the first target and heel contact on the same target. When there was a single target in the travel path, both groups fixated the target until after heel contact on the target. However, when challenged with an additional target, both groups transferred their gaze from the first target prior to heel contact. Interestingly, only people with PD increased anterior-posterior absolute error (first target) when there was more than one target in the travel path. Premature gaze transfer was associated with decline in stepping accuracy (anterior-posterior absolute error) in people with PD. These findings suggest that both people with PD and healthy individuals prioritize the planning of future actions over the execution of ongoing steps, while walking. Additionally, current findings support the notion people with PD are more dependent on visual feedback to make on-line corrections and adjustments to their foot trajectory in order to guarantee accurate foot placement into an intended stepping target. |
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Synchrony of gaze and stepping patterns in people with Parkinson's diseaseEye trackingGaitGazeParkinson's diseaseThe aim of the present study was to test the hypothesis that people with Parkinson's disease (PD) are more dependent than healthy individuals on visual information in an on-line manner to guarantee accurate foot placement into an intended stepping target. Patients with PD and age-matched healthy participants walked along a pathway and were required to step onto either one or two targets during the walk trial. Outcome measures included absolute error (accuracy) and error variability (precision) of foot placement onto the first target, and the time interval between the gaze transfer away from the first target and heel contact on the same target. When there was a single target in the travel path, both groups fixated the target until after heel contact on the target. However, when challenged with an additional target, both groups transferred their gaze from the first target prior to heel contact. Interestingly, only people with PD increased anterior-posterior absolute error (first target) when there was more than one target in the travel path. Premature gaze transfer was associated with decline in stepping accuracy (anterior-posterior absolute error) in people with PD. These findings suggest that both people with PD and healthy individuals prioritize the planning of future actions over the execution of ongoing steps, while walking. Additionally, current findings support the notion people with PD are more dependent on visual feedback to make on-line corrections and adjustments to their foot trajectory in order to guarantee accurate foot placement into an intended stepping target.Sun Life Financial Movement Disorders Research and Rehabilitation Centre Wilfrid Laurier UniversityPosture and Gait Studies Lab UNESP - Univ Estadual Paulista (Sao Paulo State University)School of Physical Education and Sport at Ribeirao Preto University of Sao PauloPosture and Gait Studies Lab UNESP - Univ Estadual Paulista (Sao Paulo State University)Wilfrid Laurier UniversityUniversidade Estadual Paulista (Unesp)Universidade de São Paulo (USP)Vitório, Rodrigo [UNESP]Gobbi, Lilian T.B. [UNESP]Lirani-Silva, Ellen [UNESP]Moraes, RenatoAlmeida, Quincy J.2018-12-11T16:41:44Z2018-12-11T16:41:44Z2016-07-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article159-164application/pdfhttp://dx.doi.org/10.1016/j.bbr.2016.04.010Behavioural Brain Research, v. 307, p. 159-164.1872-75490166-4328http://hdl.handle.net/11449/16855110.1016/j.bbr.2016.04.0102-s2.0-849627582842-s2.0-84962758284.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBehavioural Brain Research1,413info:eu-repo/semantics/openAccess2024-01-24T06:34:10Zoai:repositorio.unesp.br:11449/168551Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:51:52.483577Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Synchrony of gaze and stepping patterns in people with Parkinson's disease |
title |
Synchrony of gaze and stepping patterns in people with Parkinson's disease |
spellingShingle |
Synchrony of gaze and stepping patterns in people with Parkinson's disease Vitório, Rodrigo [UNESP] Eye tracking Gait Gaze Parkinson's disease |
title_short |
Synchrony of gaze and stepping patterns in people with Parkinson's disease |
title_full |
Synchrony of gaze and stepping patterns in people with Parkinson's disease |
title_fullStr |
Synchrony of gaze and stepping patterns in people with Parkinson's disease |
title_full_unstemmed |
Synchrony of gaze and stepping patterns in people with Parkinson's disease |
title_sort |
Synchrony of gaze and stepping patterns in people with Parkinson's disease |
author |
Vitório, Rodrigo [UNESP] |
author_facet |
Vitório, Rodrigo [UNESP] Gobbi, Lilian T.B. [UNESP] Lirani-Silva, Ellen [UNESP] Moraes, Renato Almeida, Quincy J. |
author_role |
author |
author2 |
Gobbi, Lilian T.B. [UNESP] Lirani-Silva, Ellen [UNESP] Moraes, Renato Almeida, Quincy J. |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Wilfrid Laurier University Universidade Estadual Paulista (Unesp) Universidade de São Paulo (USP) |
dc.contributor.author.fl_str_mv |
Vitório, Rodrigo [UNESP] Gobbi, Lilian T.B. [UNESP] Lirani-Silva, Ellen [UNESP] Moraes, Renato Almeida, Quincy J. |
dc.subject.por.fl_str_mv |
Eye tracking Gait Gaze Parkinson's disease |
topic |
Eye tracking Gait Gaze Parkinson's disease |
description |
The aim of the present study was to test the hypothesis that people with Parkinson's disease (PD) are more dependent than healthy individuals on visual information in an on-line manner to guarantee accurate foot placement into an intended stepping target. Patients with PD and age-matched healthy participants walked along a pathway and were required to step onto either one or two targets during the walk trial. Outcome measures included absolute error (accuracy) and error variability (precision) of foot placement onto the first target, and the time interval between the gaze transfer away from the first target and heel contact on the same target. When there was a single target in the travel path, both groups fixated the target until after heel contact on the target. However, when challenged with an additional target, both groups transferred their gaze from the first target prior to heel contact. Interestingly, only people with PD increased anterior-posterior absolute error (first target) when there was more than one target in the travel path. Premature gaze transfer was associated with decline in stepping accuracy (anterior-posterior absolute error) in people with PD. These findings suggest that both people with PD and healthy individuals prioritize the planning of future actions over the execution of ongoing steps, while walking. Additionally, current findings support the notion people with PD are more dependent on visual feedback to make on-line corrections and adjustments to their foot trajectory in order to guarantee accurate foot placement into an intended stepping target. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-07-01 2018-12-11T16:41:44Z 2018-12-11T16:41:44Z |
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/10.1016/j.bbr.2016.04.010 Behavioural Brain Research, v. 307, p. 159-164. 1872-7549 0166-4328 http://hdl.handle.net/11449/168551 10.1016/j.bbr.2016.04.010 2-s2.0-84962758284 2-s2.0-84962758284.pdf |
url |
http://dx.doi.org/10.1016/j.bbr.2016.04.010 http://hdl.handle.net/11449/168551 |
identifier_str_mv |
Behavioural Brain Research, v. 307, p. 159-164. 1872-7549 0166-4328 10.1016/j.bbr.2016.04.010 2-s2.0-84962758284 2-s2.0-84962758284.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Behavioural Brain Research 1,413 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
159-164 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_ |
1808129559457955840 |