Document Detail


Inter-individual variability in sensory weighting of a plantar pressure-based, tongue-placed tactile biofeedback for controlling posture.
MedLine Citation:
PMID:  17566646     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The purpose of the present experiment was to investigate whether the sensory weighting of a plantar pressure-based, tongue-placed tactile biofeedback for controlling posture could be subject to inter-individual variability. To achieve this goal, 60 young healthy adults were asked to stand as immobile as possible with their eyes closed in two conditions of No-biofeedback and Biofeedback. Centre of foot pressure (CoP) displacements were recorded using a force platform. Overall, results showed reduced CoP displacements in the Biofeedback relative to the No-biofeedback condition, evidencing the ability of the central nervous system to efficiently integrate an artificial plantar-based, tongue-placed tactile biofeedback for controlling posture during quiet standing. Results further showed a significant positive correlation between the CoP displacements measured in the No-biofeedback condition and the decrease in the CoP displacements induced by the use of the biofeedback. In other words, the degree of postural stabilization appeared to depend on each subject's balance control capabilities, the biofeedback yielding a greater stabilizing effect in subjects exhibiting the largest CoP displacements when standing in the No-biofeedback condition. On the whole, by evidencing a significant inter-individual variability in sensory weighting of an additional tactile information related to foot sole pressure distribution for controlling posture, the present findings underscore the need and the necessity to address the issue of inter-individual variability in the field of neuroscience.
Authors:
Nicolas Vuillerme; Olivier Chenu; Nicolas Pinsault; Matthieu Boisgontier; Jacques Demongeot; Yohan Payan
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2007-05-29
Journal Detail:
Title:  Neuroscience letters     Volume:  421     ISSN:  0304-3940     ISO Abbreviation:  Neurosci. Lett.     Publication Date:  2007 Jun 
Date Detail:
Created Date:  2007-06-19     Completed Date:  2007-09-28     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  7600130     Medline TA:  Neurosci Lett     Country:  Ireland    
Other Details:
Languages:  eng     Pagination:  173-7     Citation Subset:  IM    
Affiliation:
Laboratoire TIMC-IMAG, UMR UJF CNRS 5525, La Tronche, France. nicolas.vuillerme@imag.fr
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MeSH Terms
Descriptor/Qualifier:
Adult
Biofeedback, Psychology / physiology*
Biomechanics
Female
Foot / physiology
Humans
Male
Postural Balance / physiology*
Posture / physiology*
Pressure
Proprioception / physiology*
Tongue / physiology
Touch / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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