Modifying the gain of the visual feedback affects undisturbed upright stance control

Clinical Biomechanics
P RougierL Berger

Abstract

To assess the effects of visual feedback gain, which express the amplitudes of the displacements of the centre of pressure displayed on a computer screen. The controlling variable, the centre of pressure trajectories, recorded using a force platform, were decomposed into two elementary motions: (1) the horizontal displacements of the centre of gravity and (2) the vertical projection of the difference between centre of pressure and the centre of gravity. These motions were processed through frequency analysis and modelled as fractional Brownian motion to assess their spatio-temporal linkage and their degree of control. Although tests to modify the feedback gain have already been carried out, the specific effects from a biomechanical and motor control point of view need to be assessed. Thirteen healthy adults were tested through various visual feedback gains performed in random order. By increasing the visual feedback gain, no difference is observed between centre of pressure and centre of gravity motions whereas a progressive diminution of centre of gravity horizontal motions is seen. This latter effect is principally explained by a reinforcement of control during corrective processes. When the control of centre of gravity const...Continue Reading

References

Feb 1, 1984·Electroencephalography and Clinical Neurophysiology·H C DienerB Gompf
Aug 1, 1994·Physical Review Letters·J J Collins, De Luca CJ
Dec 1, 1996·Journal of Motor Behavior·Y Brenière
Mar 1, 1987·Journal of Motor Behavior·Y BrenièreS Bouisset

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Citations

Apr 11, 2006·Experimental Brain Research·David E VaillancourtKarl M Newell
May 13, 2008·Experimental Brain Research·S Lee Hong, Karl M Newell
Jul 10, 2013·Experimental Brain Research·Michael W KennedyJames P Schmiedeler
Sep 24, 2011·International Journal of Nephrology·Georges Deschênes, Marc Fila
Oct 12, 2010·Gait & Posture·Saritha Miriyala RadhakrishnanDimitrios Tzovaras
Dec 19, 2015·Applied Psychophysiology and Biofeedback·Deborah A JehuYves Lajoie
Sep 5, 2013·Gait & Posture·Zuzana HalickáFrantišek Hlavačka
Nov 4, 2011·Gait & Posture·Joanna Szczepańska-GierachaMichał Kuczyński
Nov 12, 2016·Scientific Reports·Nobuaki HigakiTetsuo Ichikawa
Sep 28, 2016·Archives of Physical Medicine and Rehabilitation·Sarah J OzingaJay L Alberts
Nov 30, 2018·Experimental Brain Research·Patrice R RougierBaptiste Tollenaere
May 17, 2021·Journal of Bodywork and Movement Therapies·Claressa ChamberlinChristopher J Burcal

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