Sensory supplementation system based on electrotactile tongue biofeedback of head position for balance control.

Sensory supplementation system based on electrotactile tongue biofeedback of head position for balance control. Research Abstract Details 

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Sensory supplementation system based on electrotactile tongue biofeedback of head position for balance control. Abstract Text:

Nicolas Vuillerme,Nicolas Pinsault,Olivier Chenu,Jacques Demongeot,Yohan Payan,Yuri Danilov,

The present study aimed at investigating the effects of an artificial head position-based tongue-placed electrotactile biofeedback on postural control during quiet standing under different somatosensory conditions from the support surface. Eight young healthy adults were asked to stand as immobile as possible with their eyes closed on two Firm and Foam support surface conditions executed in two conditions of No-biofeedback and Biofeedback. In the Foam condition, a 6-cm thick foam support surface was placed under the subjects' feet to alter the quality and/or quantity of somatosensory information at the plantar sole and the ankle. The underlying principle of the biofeedback consisted of providing supplementary information about the head orientation with respect to gravitational vertical through electrical stimulation of the tongue. Centre of foot pressure (CoP) displacements were recorded using a force platform. Larger CoP displacements were observed in the Foam than Firm conditions in the two conditions of No-biofeedback and Biofeedback. Interestingly, this destabilizing effect was less accentuated in the Biofeedback than No-biofeedback condition. In accordance with the sensory re-weighting hypothesis for balance control, the present findings evidence that the availability of the central nervous system to integrate an artificial head orientation information delivered through electrical stimulation of the tongue to limit the postural perturbation induced by alteration of somatosensory input from the support surface.

Sensory supplementation system based on electrotactile tongue biofeedback of head position for balance control. Publishing Authors By Initials

N Vuillerme,N Pinsault,O Chenu,J Demongeot,Y Payan,Y Danilov,

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Sensory supplementation system based on electrotactile tongue biofeedback of head position for balance control. Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Neuroscience letters

VOLUME: 431

Page Numbers: 206-10

Journal Abbreviation: Neurosci. Lett.

ISSN: 0304-3940

DAY: 5

MONTH: 12

YEAR: 2007

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LANGUAGE: eng

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AFFILIATION: Laboratoire TIMC-IMAG, UMR UJF CNRS 5525, La Tronche, France; Wicab Inc., Middleton, WI 53562, United States.

Country: Ireland

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MEDLINETA: Neurosci Lett

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