Title :

Behavioral synergic relations between eye and postural movements in young adults searching to locate objects in room inside houses

Author(s) :

Bonnet, Cédrick T. [Auteur]
Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193
Barela, Jose [Auteur]
Universidade Estadual Paulista Júlio de Mesquita Filho = São Paulo State University [UNESP]
Singh, Tarkeshwar [Auteur]
Pennsylvania State University [Penn State]

Journal title :

Experimental Brain Research

Abbreviated title :

Exp Brain Res

Volume number :

240

Pages :

549-559

Publisher :

Springer Science and Business Media LLC

Publication date :

2022-01-30

ISSN :

0014-4819

HAL domain(s) :

Sciences cognitives

English abstract : [en]

During exploratory gaze shifts, eye, head and body movements exhibit synergic relations to stabilize posture. In the present study, we investigated how postural control is actively adapted to perform self-induced gaze ...
Show more >During exploratory gaze shifts, eye, head and body movements exhibit synergic relations to stabilize posture. In the present study, we investigated how postural control is actively adapted to perform self-induced gaze shifts to visually search for targets. We tested the existence of behavioural synergic relations between eye and postural movements in a goal-directed, precise, visual search task (locate target objects in large images). More precisely, we tested if postural control could be adjusted specifically to facilitate precise gaze shifts. Participants also performed a free-viewing task (gaze images with no goal) and a fixation task. In both search and free-viewing tasks, young participants (n=20; mean age= 22 years) were free to move their eyes, head and body segments as they pleased to self-explore the images with no external perturbation. We measured eye and postural kinematic movements. The results showed significant negative correlations between eye and postural (head and upper back) movements in the precise task, but not in the free-viewing task. The negative correlations were considered to be stabilizing and synergic. Indeed, the further the eyes moved, the more postural variables were adjusted to reduce postural sway. These results suggest that postural control was adjusted to succeed in subtle and active self-induced precise gaze shifts. Furthermore, partial correlations showed significant relations between i) task performance to find target objects and ii) synergic relations between eye and postural movements. These later results tend to show that synergic eye-postural relations were performed to improve the task performance in the precise visual task.Show less >

Language :

Anglais

Peer reviewed article :

Oui

Audience :

Internationale

Administrative institution(s) :

Université de Lille
CNRS
CHU Lille

Collections :

• Sciences Cognitives et Sciences Affectives (SCALab) - UMR 9193

Research team(s) :

Équipe Action, Vision et Apprentissage (AVA)

Submission date :

2021-12-09T15:57:34Z
2021-12-09T16:12:38Z
2021-12-10T07:33:52Z
2022-04-21T16:33:36Z