Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2008-11-25
pubmed:abstractText
Vision has been shown for almost a century to be heavily involved in postural control. However, the mechanism by which it operates is still an open debate. The purpose of this manuscript is to review the evidence supporting the view that there are two modes of visual detection of body sway: ocular and extraocular. The former is based on the characteristics of the visual flow (retinal slip), the second one is based on either the copy of the motor command (efference copy) or the extraocular muscle afferents (re-afferences) consecutive to eye movements. Results from the literature indicate that these two modes of visual detection of body sway are effective and can operate congruently. For sufficiently large body sway with respect to eye-target distance, the ocular and the extraocular perception systems could provide two sources of visual information about body displacements. However, the afferent system might remain the only one used for small lateral body sway.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0987-7053
pubmed:author
pubmed:issnType
Print
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
391-8
pubmed:meshHeading
pubmed:year
2008
pubmed:articleTitle
Ocular versus extraocular control of posture and equilibrium.
pubmed:affiliation
CNRS UMR 5105, laboratoire de psychologie et neurocognition, université de Savoie, 73376 Le-Bourget-du-lac, France. Michel.guerraz@univ-savoie.fr
pubmed:publicationType
Journal Article, Review