Document Detail

The control of bimanual aiming movements in Parkinson's disease.
MedLine Citation:
PMID:  3346687     Owner:  NLM     Status:  MEDLINE    
The control of unimanual and bimanual aiming movements by Parkinson's disease and control subjects was examined. Despite greater bimanual movement initiation asynchrony and overall bradykinesia, the Parkinson's disease subjects were affected by the experimental manipulations in the same way as controls. Symmetrical and, more especially, asymmetrical bimanual movements required more preparation time and were executed more slowly by both groups than were unimanual movements. Both groups also showed temporal linkage of movements to targets of different extents--movements which have different movement times when performed unimanually, as well as of the faster and slower limbs. A majority in both groups over-compensated for asynchrony in bimanual movement initiation by modulation of movement times, but there was no group difference in this tendency. The results are discussed in terms of underlying motor control processes and with regard to previous evidence for impaired control of simultaneous movements in Parkinson's disease.
G E Stelmach; C J Worringham
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Journal of neurology, neurosurgery, and psychiatry     Volume:  51     ISSN:  0022-3050     ISO Abbreviation:  J. Neurol. Neurosurg. Psychiatr.     Publication Date:  1988 Feb 
Date Detail:
Created Date:  1988-04-11     Completed Date:  1988-04-11     Revised Date:  2009-11-18    
Medline Journal Info:
Nlm Unique ID:  2985191R     Medline TA:  J Neurol Neurosurg Psychiatry     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  223-31     Citation Subset:  IM    
Motor Behavior Laboratory, University of Wisconsin-Madison.
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MeSH Terms
Functional Laterality / physiology*
Middle Aged
Motor Neurons / physiology
Muscles / innervation
Parkinson Disease / physiopathology*
Psychomotor Performance / physiology*
Reaction Time / physiology
Grant Support

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

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