Document Detail

Sensorimotor transformations underlying the organization of arm movements in three-dimensional space.
MedLine Citation:
PMID:  3167677     Owner:  NLM     Status:  MEDLINE    
Coordinated movements in three-dimensional space involve sensorimotor transformations between extrinsic and intrinsic coordinates. It is hypothesized that a key aspect underlying the organization of such movements is the need to simplify these transformations by means of suitable approximations and the imposition of constraints. Motor tasks involving the drawing of circles and ellipses in different planes were analyzed from this perspective, and some rules are presented whereby the plane of motion and the slant of an ellipse can be specified in a simple way in terms of intrinsic parameters. It is shown that these rules can be generalized to hold for more complicated wrist motions if one assumes that they consist of segments of elliptical arcs.
J F Soechting; C A Terzuolo
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Canadian journal of physiology and pharmacology     Volume:  66     ISSN:  0008-4212     ISO Abbreviation:  Can. J. Physiol. Pharmacol.     Publication Date:  1988 Apr 
Date Detail:
Created Date:  1988-11-01     Completed Date:  1988-11-01     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0372712     Medline TA:  Can J Physiol Pharmacol     Country:  CANADA    
Other Details:
Languages:  eng     Pagination:  502-7     Citation Subset:  IM; S    
Laboratory of Neurophysiology, University of Minnesota, Minneapolis 55455.
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MeSH Terms
Arm / physiology*
Psychomotor Performance / physiology*
Grant Support

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