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DEVELOPMENT OF MULTISENSORY REWEIGHTING FOR POSTURE CONTROL IN CHILDREN

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DEVELOPMENT OF MULTISENSORY REWEIGHTING FOR POSTURE CONTROL IN CHILDREN

Auteurs : Woei-Nan Bair [États-Unis] ; Tim Kiemel [États-Unis] ; John J. Jeka [États-Unis] ; Jane E. Clark [États-Unis]

Source :

Experimental brain research. Experimentelle Hirnforschung. Experimentation cerebrale [ 0014-4819 ] ; 2007.

RBID : PMC:2720682

Abstract

Reweighting to multisensory inputs adaptively contributes to stable and flexible upright stance control. However, few studies have examined how early a child develops multisensory reweighting ability, or how this ability develops through childhood. The purpose of the study was to characterize a developmental landscape of multisensory reweighting for upright postural control in children 4 to 10 years of age. Children were presented with simultaneous small-amplitude somatosensory and visual environmental movement at 0.28 and 0.2 Hz, respectively, within five conditions that independently varied the amplitude of the stimuli. The primary measure was body sway amplitude relative to each stimulus: touch gain and vision gain. We found that children can reweight to multisensory inputs from 4 years on. Specifically, intra-modal reweighting was exhibited by children as young as 4 years of age; however, inter-modal reweighting was only observed in the older children. The amount of reweighting increased with age indicating development of a better adaptive ability. Our results rigorously demonstrate the development of simultaneous reweighting to two sensory inputs for postural control in children. The present results provide further evidence that the development of multisensory reweighting contributes to more stable and flexible control of upright stance which ultimately serves as the foundation for functional behaviors such as locomotion and reaching.

Url:

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2720682

DOI: 10.1007/s00221-007-1057-2
PubMed: 17665179
PubMed Central: 2720682

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PMC:2720682

Le document en format XML

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DEVELOPMENT OF MULTISENSORY REWEIGHTING FOR POSTURE CONTROL IN CHILDREN

DEVELOPMENT OF MULTISENSORY REWEIGHTING FOR POSTURE CONTROL IN CHILDREN

Source :

Abstract

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