Optimization of postural control in precise gaze shifts and laser pointing

Autor: Bonnet, C.T. (Cédrick T.), Dubrulle, D. (Déborah), Barela, J. (Jose), DEFEBVRE, L. (Luc), Delval, A. (Arnaud)
Přispěvatelé: Université de Lille, LillOA, Laboratoire Sciences Cognitives et Sciences Affectives - UMR 9193 (SCALab), Université de Lille-Centre National de la Recherche Scientifique (CNRS), Universidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University (UNESP), Lille Neurosciences & Cognition - U 1172 (LilNCog), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193 (SCALab), Lille Neurosciences & Cognition - U 1172 (LilNCog (ex-JPARC)), Université de Lille, CNRS, CHU Lille, Laboratoire Sciences Cognitives et Sciences Affectives - UMR 9193 [SCALab], Lille Neurosciences & Cognition - U 1172 [LilNCog], Troubles cognitifs dégénératifs et vasculaires - U 1171 [TCDV], UMR 9193 – SCALab – Sciences Cognitives et Sciences Affectives, Universidade Estadual Paulista (UNESP), Hôpital Salengro
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Human Movement Science
Human Movement Science, 2021, Human Movement Science, 79, ⟨10.1016/j.humov.2021.102853⟩
Human Movement Science, Elsevier, 2021, 79, pp.102853. ⟨10.1016/j.humov.2021.102853⟩
Université de Lille
Scopus
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
ISSN: 0167-9457
DOI: 10.1016/j.humov.2021.102853⟩
Popis: Made available in DSpace on 2022-05-01T07:58:42Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-10-01 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. Univ. Lille CNRS UMR 9193 – SCALab – Sciences Cognitives et Sciences Affectives São Paulo State University Institute of Biosciences CHRU Lille Unité INSERM 1172 Service de Neurologie et Pathologie du Mouvement Centre Expert Parkinson Hôpital Salengro CHRU Lille Unité INSERM 1172 Service de Neurophysiologie Clinique Hôpital Salengro São Paulo State University Institute of Biosciences
Databáze: OpenAIRE
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