Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room
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.neulet.2021.136276 http://hdl.handle.net/11449/222701 |
Resumo: | This study investigated the modulation of center of pressure (CoP) displacements of young adults as they performed predictable and unpredictable saccadic eye movements in stationary and moving visual scenarios. We also examined whether the relationship between CoP displacements and visual stimulus, provided by the moving scenario, and gaze control itself, are affected by the demands of the saccadic tasks. Fifteen young adults (20.53 ± 2.1 years old) stood upright on a force plate, inside a moving room, wearing an eye tracker while performing three tasks: gaze fixation (fixating on a target in the center of the screen), predictable task (saccades while following a target which continuously appeared and disappeared on the right and left sides), and unpredictable task (similar to the previous task, but the participants did not know which side the target would appear on). For saccadic tasks, the target appeared at a frequency of 1.1 Hz and with eccentricity of 11.5 degrees of visual angle. Two blocks of six trials were performed: in the first block, the room remained stationary and in the second, it oscillated (0.6 cm amplitude; 0.2 Hz frequency). Mean amplitude of CoP displacements was lower in the saccadic tasks compared to the gaze fixation, in both conditions; and higher in the moving scenario than in the stationary condition. Variability of CoP displacements was lower in the unpredictable saccades than gaze fixation task. Saccade reaction time was longer in the unpredictable than predictable task. We conclude that CoP displacements are reduced to facilitate performance of the saccadic tasks regardless of conditions and task complexity. Furthermore, lower variability suggests modulation of CoP displacements to deal with the increased attentional demands associated with the performance of the unpredictable saccades, indicating the important role of visual task constraints in postural control. |
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Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving roomCenter of pressureGaze FixationOptical flowSaccadesSensorimotor coupling, Postural controlThis study investigated the modulation of center of pressure (CoP) displacements of young adults as they performed predictable and unpredictable saccadic eye movements in stationary and moving visual scenarios. We also examined whether the relationship between CoP displacements and visual stimulus, provided by the moving scenario, and gaze control itself, are affected by the demands of the saccadic tasks. Fifteen young adults (20.53 ± 2.1 years old) stood upright on a force plate, inside a moving room, wearing an eye tracker while performing three tasks: gaze fixation (fixating on a target in the center of the screen), predictable task (saccades while following a target which continuously appeared and disappeared on the right and left sides), and unpredictable task (similar to the previous task, but the participants did not know which side the target would appear on). For saccadic tasks, the target appeared at a frequency of 1.1 Hz and with eccentricity of 11.5 degrees of visual angle. Two blocks of six trials were performed: in the first block, the room remained stationary and in the second, it oscillated (0.6 cm amplitude; 0.2 Hz frequency). Mean amplitude of CoP displacements was lower in the saccadic tasks compared to the gaze fixation, in both conditions; and higher in the moving scenario than in the stationary condition. Variability of CoP displacements was lower in the unpredictable saccades than gaze fixation task. Saccade reaction time was longer in the unpredictable than predictable task. We conclude that CoP displacements are reduced to facilitate performance of the saccadic tasks regardless of conditions and task complexity. Furthermore, lower variability suggests modulation of CoP displacements to deal with the increased attentional demands associated with the performance of the unpredictable saccades, indicating the important role of visual task constraints in postural control.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)São Paulo State University (UNESP) Department of Physical Education Faculty of Sciences Laboratory of Information Vision and Action (LIVIA)Post-graduation Program in Movement Sciences São Paulo State University – UNESPCentro Universitário Sagrado Coração (UNISAGRADO) Department of Health ScienceSão Paulo State University (UNESP) Department of Physical Education Faculty of Sciences Human Movement Research Laboratory (MOVI-LAB)São Paulo State University (UNESP) Department of Physical Education Institute of Bioscience Movement Studies Laboratory (LEM)São Paulo State University (UNESP) Department of Physical Education Faculty of Sciences Laboratory of Information Vision and Action (LIVIA)Post-graduation Program in Movement Sciences São Paulo State University – UNESPSão Paulo State University (UNESP) Department of Physical Education Faculty of Sciences Human Movement Research Laboratory (MOVI-LAB)São Paulo State University (UNESP) Department of Physical Education Institute of Bioscience Movement Studies Laboratory (LEM)Universidade Estadual Paulista (UNESP)Centro Universitário Sagrado Coração (UNISAGRADO)Belizário Brito, Matheus [UNESP]Chiozi Gotardi, Gisele [UNESP]Tosi Rodrigues, Sérgio [UNESP]Carvalho Cavalieri, Beatriz [UNESP]Nera Lima, Diego [UNESP]Lemes de Moraes, Rodolfo [UNESP]Scarparo Ferreira, Livia [UNESP]Augusto Barbieri, Fabio [UNESP]Angelo Barela, José [UNESP]Fávaro Polastri, Paula [UNESP]2022-04-28T19:46:19Z2022-04-28T19:46:19Z2021-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.neulet.2021.136276Neuroscience Letters, v. 764.1872-79720304-3940http://hdl.handle.net/11449/22270110.1016/j.neulet.2021.1362762-s2.0-85117605223Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengNeuroscience Lettersinfo:eu-repo/semantics/openAccess2022-04-28T19:46:19Zoai:repositorio.unesp.br:11449/222701Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T23:44:18.592576Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room |
title |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room |
spellingShingle |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room Belizário Brito, Matheus [UNESP] Center of pressure Gaze Fixation Optical flow Saccades Sensorimotor coupling, Postural control |
title_short |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room |
title_full |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room |
title_fullStr |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room |
title_full_unstemmed |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room |
title_sort |
Variability of visually-induced center of pressure displacements is reduced while young adults perform unpredictable saccadic eye movements inside a moving room |
author |
Belizário Brito, Matheus [UNESP] |
author_facet |
Belizário Brito, Matheus [UNESP] Chiozi Gotardi, Gisele [UNESP] Tosi Rodrigues, Sérgio [UNESP] Carvalho Cavalieri, Beatriz [UNESP] Nera Lima, Diego [UNESP] Lemes de Moraes, Rodolfo [UNESP] Scarparo Ferreira, Livia [UNESP] Augusto Barbieri, Fabio [UNESP] Angelo Barela, José [UNESP] Fávaro Polastri, Paula [UNESP] |
author_role |
author |
author2 |
Chiozi Gotardi, Gisele [UNESP] Tosi Rodrigues, Sérgio [UNESP] Carvalho Cavalieri, Beatriz [UNESP] Nera Lima, Diego [UNESP] Lemes de Moraes, Rodolfo [UNESP] Scarparo Ferreira, Livia [UNESP] Augusto Barbieri, Fabio [UNESP] Angelo Barela, José [UNESP] Fávaro Polastri, Paula [UNESP] |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Centro Universitário Sagrado Coração (UNISAGRADO) |
dc.contributor.author.fl_str_mv |
Belizário Brito, Matheus [UNESP] Chiozi Gotardi, Gisele [UNESP] Tosi Rodrigues, Sérgio [UNESP] Carvalho Cavalieri, Beatriz [UNESP] Nera Lima, Diego [UNESP] Lemes de Moraes, Rodolfo [UNESP] Scarparo Ferreira, Livia [UNESP] Augusto Barbieri, Fabio [UNESP] Angelo Barela, José [UNESP] Fávaro Polastri, Paula [UNESP] |
dc.subject.por.fl_str_mv |
Center of pressure Gaze Fixation Optical flow Saccades Sensorimotor coupling, Postural control |
topic |
Center of pressure Gaze Fixation Optical flow Saccades Sensorimotor coupling, Postural control |
description |
This study investigated the modulation of center of pressure (CoP) displacements of young adults as they performed predictable and unpredictable saccadic eye movements in stationary and moving visual scenarios. We also examined whether the relationship between CoP displacements and visual stimulus, provided by the moving scenario, and gaze control itself, are affected by the demands of the saccadic tasks. Fifteen young adults (20.53 ± 2.1 years old) stood upright on a force plate, inside a moving room, wearing an eye tracker while performing three tasks: gaze fixation (fixating on a target in the center of the screen), predictable task (saccades while following a target which continuously appeared and disappeared on the right and left sides), and unpredictable task (similar to the previous task, but the participants did not know which side the target would appear on). For saccadic tasks, the target appeared at a frequency of 1.1 Hz and with eccentricity of 11.5 degrees of visual angle. Two blocks of six trials were performed: in the first block, the room remained stationary and in the second, it oscillated (0.6 cm amplitude; 0.2 Hz frequency). Mean amplitude of CoP displacements was lower in the saccadic tasks compared to the gaze fixation, in both conditions; and higher in the moving scenario than in the stationary condition. Variability of CoP displacements was lower in the unpredictable saccades than gaze fixation task. Saccade reaction time was longer in the unpredictable than predictable task. We conclude that CoP displacements are reduced to facilitate performance of the saccadic tasks regardless of conditions and task complexity. Furthermore, lower variability suggests modulation of CoP displacements to deal with the increased attentional demands associated with the performance of the unpredictable saccades, indicating the important role of visual task constraints in postural control. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-11-01 2022-04-28T19:46:19Z 2022-04-28T19:46:19Z |
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.neulet.2021.136276 Neuroscience Letters, v. 764. 1872-7972 0304-3940 http://hdl.handle.net/11449/222701 10.1016/j.neulet.2021.136276 2-s2.0-85117605223 |
url |
http://dx.doi.org/10.1016/j.neulet.2021.136276 http://hdl.handle.net/11449/222701 |
identifier_str_mv |
Neuroscience Letters, v. 764. 1872-7972 0304-3940 10.1016/j.neulet.2021.136276 2-s2.0-85117605223 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Neuroscience Letters |
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_ |
1808129547843928064 |