Voluntarily controlled but not merely observed visual feedback affects postural sway.

ABSTRACT: Online stabilization of human standing posture utilizes multisensory afferences (e.g., vision). Whereas visual feedback of spontaneous postural sway can stabilize postural control especially when observers concentrate on their body and intend to minimize postural sway, the effect of intentional control of visual feedback on postural sway itself remains unclear. This study assessed quiet standing posture in healthy adults voluntarily controlling or merely observing visual feedback. The visual feedback (moving square) had either low or high gain and was either horizontally flipped or not. Participants in the voluntary-control group were instructed to minimize their postural sway while voluntarily controlling visual feedback, whereas those in the observation group were instructed to minimize

SUBMITTER: Imaizumi S 

PROVIDER: S-EPMC5909687 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature