Optimization of postural control in precise gaze shifts and laser pointing
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.humov.2021.102853 http://hdl.handle.net/11449/233316 |
Resumo: | Young adults are known to reduce their postural sway to perform precise visual search and laser pointing tasks. We tested if young adults could reduce even more postural and/or center of pressure sway to succeed in both tasks simultaneously. The methodology is novel because published pointing tasks usually require continuously looking at the pointed target and not exploring an image while pointing elsewhere at the same time. Twenty-five healthy young adults (23.2 ± 2.5 years) performed six visual tasks. In the free-viewing task, participants randomly explored images with no goal. In two visual search tasks, participants searched to locate objects (easy search task) or graphical details (hard search task). Participants additionally pointed a laser beam into a central circle (2°) or pointed the laser turned off. Postural sway and center of pressure sway were reduced complementarily – in various variables – to perform the visual search and pointing tasks. Unexpectedly, the pointing task influenced more strongly postural sway and center of pressure sway than the search tasks. Overall, the participants adopted a functional strategy in stabilizing their posture to succeed in the pointing task and also to fully explore images. Therefore, it is possible to inverse the strength of effects found in the literature (usually stronger for the search task) in modulating the experimental methodology. In search tasks more than in free-viewing tasks, participants mostly rotated their eyes and head, and not their full body, to stabilize their posture. These results could have implications for shooting activities, video console games and rehabilitation most particularly. |
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Optimization of postural control in precise gaze shifts and laser pointingEcological images on a large displayInteraction and priorityPostural controlVisual and pointing tasksYoung adultsYoung adults are known to reduce their postural sway to perform precise visual search and laser pointing tasks. We tested if young adults could reduce even more postural and/or center of pressure sway to succeed in both tasks simultaneously. The methodology is novel because published pointing tasks usually require continuously looking at the pointed target and not exploring an image while pointing elsewhere at the same time. Twenty-five healthy young adults (23.2 ± 2.5 years) performed six visual tasks. In the free-viewing task, participants randomly explored images with no goal. In two visual search tasks, participants searched to locate objects (easy search task) or graphical details (hard search task). Participants additionally pointed a laser beam into a central circle (2°) or pointed the laser turned off. Postural sway and center of pressure sway were reduced complementarily – in various variables – to perform the visual search and pointing tasks. Unexpectedly, the pointing task influenced more strongly postural sway and center of pressure sway than the search tasks. Overall, the participants adopted a functional strategy in stabilizing their posture to succeed in the pointing task and also to fully explore images. Therefore, it is possible to inverse the strength of effects found in the literature (usually stronger for the search task) in modulating the experimental methodology. In search tasks more than in free-viewing tasks, participants mostly rotated their eyes and head, and not their full body, to stabilize their posture. These results could have implications for shooting activities, video console games and rehabilitation most particularly.Univ. Lille CNRS UMR 9193 – SCALab – Sciences Cognitives et Sciences AffectivesSão Paulo State University Institute of BiosciencesCHRU Lille Unité INSERM 1172 Service de Neurologie et Pathologie du Mouvement Centre Expert Parkinson Hôpital SalengroCHRU Lille Unité INSERM 1172 Service de Neurophysiologie Clinique Hôpital SalengroSão Paulo State University Institute of BiosciencesUMR 9193 – SCALab – Sciences Cognitives et Sciences AffectivesUniversidade Estadual Paulista (UNESP)Hôpital SalengroBonnet, Cédrick T.Dubrulle, DéborahBarela, José A. [UNESP]Defebvre, LucDelval, Arnaud2022-05-01T07:58:42Z2022-05-01T07:58:42Z2021-10-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.humov.2021.102853Human Movement Science, v. 79.1872-76460167-9457http://hdl.handle.net/11449/23331610.1016/j.humov.2021.1028532-s2.0-85111331661Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengHuman Movement Scienceinfo:eu-repo/semantics/openAccess2022-05-01T07:58:42Zoai:repositorio.unesp.br:11449/233316Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-05-01T07:58:42Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Optimization of postural control in precise gaze shifts and laser pointing |
title |
Optimization of postural control in precise gaze shifts and laser pointing |
spellingShingle |
Optimization of postural control in precise gaze shifts and laser pointing Bonnet, Cédrick T. Ecological images on a large display Interaction and priority Postural control Visual and pointing tasks Young adults |
title_short |
Optimization of postural control in precise gaze shifts and laser pointing |
title_full |
Optimization of postural control in precise gaze shifts and laser pointing |
title_fullStr |
Optimization of postural control in precise gaze shifts and laser pointing |
title_full_unstemmed |
Optimization of postural control in precise gaze shifts and laser pointing |
title_sort |
Optimization of postural control in precise gaze shifts and laser pointing |
author |
Bonnet, Cédrick T. |
author_facet |
Bonnet, Cédrick T. Dubrulle, Déborah Barela, José A. [UNESP] Defebvre, Luc Delval, Arnaud |
author_role |
author |
author2 |
Dubrulle, Déborah Barela, José A. [UNESP] Defebvre, Luc Delval, Arnaud |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
UMR 9193 – SCALab – Sciences Cognitives et Sciences Affectives Universidade Estadual Paulista (UNESP) Hôpital Salengro |
dc.contributor.author.fl_str_mv |
Bonnet, Cédrick T. Dubrulle, Déborah Barela, José A. [UNESP] Defebvre, Luc Delval, Arnaud |
dc.subject.por.fl_str_mv |
Ecological images on a large display Interaction and priority Postural control Visual and pointing tasks Young adults |
topic |
Ecological images on a large display Interaction and priority Postural control Visual and pointing tasks Young adults |
description |
Young adults are known to reduce their postural sway to perform precise visual search and laser pointing tasks. We tested if young adults could reduce even more postural and/or center of pressure sway to succeed in both tasks simultaneously. The methodology is novel because published pointing tasks usually require continuously looking at the pointed target and not exploring an image while pointing elsewhere at the same time. Twenty-five healthy young adults (23.2 ± 2.5 years) performed six visual tasks. In the free-viewing task, participants randomly explored images with no goal. In two visual search tasks, participants searched to locate objects (easy search task) or graphical details (hard search task). Participants additionally pointed a laser beam into a central circle (2°) or pointed the laser turned off. Postural sway and center of pressure sway were reduced complementarily – in various variables – to perform the visual search and pointing tasks. Unexpectedly, the pointing task influenced more strongly postural sway and center of pressure sway than the search tasks. Overall, the participants adopted a functional strategy in stabilizing their posture to succeed in the pointing task and also to fully explore images. Therefore, it is possible to inverse the strength of effects found in the literature (usually stronger for the search task) in modulating the experimental methodology. In search tasks more than in free-viewing tasks, participants mostly rotated their eyes and head, and not their full body, to stabilize their posture. These results could have implications for shooting activities, video console games and rehabilitation most particularly. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-10-01 2022-05-01T07:58:42Z 2022-05-01T07:58:42Z |
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.humov.2021.102853 Human Movement Science, v. 79. 1872-7646 0167-9457 http://hdl.handle.net/11449/233316 10.1016/j.humov.2021.102853 2-s2.0-85111331661 |
url |
http://dx.doi.org/10.1016/j.humov.2021.102853 http://hdl.handle.net/11449/233316 |
identifier_str_mv |
Human Movement Science, v. 79. 1872-7646 0167-9457 10.1016/j.humov.2021.102853 2-s2.0-85111331661 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Human Movement Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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_ |
1803649740375588864 |