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Adaptation to visual and proprioceptive rearrangement - Origin of the differential effectiveness of active and passive movementsExperiments were conducted to measure and compare the accuracy with which subjects pointed to visual targets before and after an exposure period in which they received systematic proprioceptive misinformation about the locations of visual targets. The crucial factor determining whether adaptation will be elicited is shown to be the presence of a discordance in the positional information being conveyed over two different sensory modalities. Another experiment was carried out to study the effectiveness of active and passive movements in eliciting adaptation when the subjects were exposed to a systematic discordance between the visual and proprioceptive locations of external targets without being permitted sight of their hands. Superiority of active over passive movements in producing adaptation to visual rearrangement is due to the greater accuracy of position sense information about voluntarily moved limbs, partly derived from the contribution of muscle afferent signals.
Document ID
19770039297
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lackner, J. R.
(Brandeis University Waltham, Mass., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1977
Publication Information
Publication: Perception and Psychophysics
Volume: 21
Subject Category
Behavioral Sciences
Accession Number
77A22149
Funding Number(s)
CONTRACT_GRANT: NGR-22-009-308
Distribution Limits
Public
Copyright
Other

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