Document Detail


Influence of imposed optic flow characteristics and intention on postural responses.
MedLine Citation:
PMID:  19454775     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This study examined the influence of both optic flow characteristics and intention on postural control responses. Two groups of 10 adults each were exposed to the room's movement either at 0.6 cm/s (low velocity group) or 1.0 cm/s (high velocity group). All the participants stood in the upright stance inside of a moving room and were informed about the room movement only after the fourth trial as they were asked to resist to its influence. Results revealed that participants from both groups were influenced by the imposed visual stimulus in the first trials, but the coupling strength was weaker for the high velocity group. The request to resist the visual influences decreased visual influences on body sway, but only for the low velocity group. These results indicate that intention might play a role in stimulus influences on body sway but it is stimulus dependent.
Authors:
Ana M F Barela; Jose A Barela; Natalia M Rinaldi; Diana R de Toledo
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Publication Detail:
Type:  Clinical Trial; Journal Article    
Journal Detail:
Title:  Motor control     Volume:  13     ISSN:  1087-1640     ISO Abbreviation:  Motor Control     Publication Date:  2009 Apr 
Date Detail:
Created Date:  2009-05-20     Completed Date:  2009-06-16     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9706297     Medline TA:  Motor Control     Country:  United States    
Other Details:
Languages:  eng     Pagination:  119-29     Citation Subset:  IM    
Affiliation:
Instituto de Ciencias da Atividade Fisica e Esporte, Universidade Cruzeiro do Sul, Sao Paulo, Brazil.
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MeSH Terms
Descriptor/Qualifier:
Adult
Cues
Humans
Intention*
Motion Perception*
Postural Balance*
Proprioception*
Psychomotor Performance
Vision, Ocular*

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


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