Title :
Postural sway response to chirp moving scene perturbations
Author :
Yoo, Sungyub ; Loughlin, Patrick J. ; Redfern, Mark S. ; Furman, Joseph M.
Author_Institution :
Dept. of Electr. Eng., Pittsburgh Univ., PA, USA
Abstract :
Moving visual scenes with sinusoidal motion have been used to study the role of vision in human balance. We applied a “chirping” visual perturbation (increasing/decreasing frequency of motion), and time-frequency analyzed the resulting center-of-pressure (COP) under the feet in healthy and vestibularly impaired subjects. Differences between healthy and impaired subjects were observed
Keywords :
biomechanics; biomedical measurement; mechanoception; time-frequency analysis; visual perception; center-of-pressure; chirp moving scene perturbations; chirping visual perturbation; feet; healthy subjects; human balance; moving visual scenes; postural sway response; sinusoidal motion; vestibularly impaired subjects; vision; Chirp; Displacement control; Eyes; Finite impulse response filter; History; Layout; Motion analysis; Motion control; Protocols; Time frequency analysis;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.804127
