Document Detail


Motor control mechanisms. An overview.
MedLine Citation:
PMID:  3431534     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Recent experiments suggest a simple relationship between posture and movement. Posture appears to result from the CNS setting the activity levels of agonist and antagonist muscles around the joint, resulting in an equilibrium force, the ratios of which are different for different positions. Control of movement is accomplished by changing the set of opposing length-tension curves. However, the experimental evidence also indicates that during movement there is active control of the trajectory in addition to control of final position. A simple strategy of choosing a new posture via the length-tension curves and letting a limb move until equilibrium is established is not the control algorithm used by the vertebrate motor system.
Authors:
E Bizzi
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Neurologic clinics     Volume:  5     ISSN:  0733-8619     ISO Abbreviation:  Neurol Clin     Publication Date:  1987 Nov 
Date Detail:
Created Date:  1988-03-09     Completed Date:  1988-03-09     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  8219232     Medline TA:  Neurol Clin     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  523-8     Citation Subset:  IM; S    
Affiliation:
Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, Cambridge.
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MeSH Terms
Descriptor/Qualifier:
Animals
Arm / physiology
Electromyography
Feedback
Head / physiology
Macaca mulatta
Motor Activity / physiology*
Photic Stimulation
Proprioception*
Reference Values
Grant Support
ID/Acronym/Agency:
AM26710/AM/NIADDK NIH HHS; EY02621/EY/NEI NIH HHS; NS09343/NS/NINDS NIH HHS

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


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