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Adaptation to Coriolis force perturbation of movement trajectory; role of proprioceptive and cutaneous somatosensory feedbackSubjects exposed to constant velocity rotation in a large fully-enclosed room that rotates initially make large reaching errors in pointing to targets. The paths and endpoints of their reaches are deviated in the direction of the transient lateral Coriolis forces generated by the forward velocity of their reaches. With additional reaches, subjects soon reach in straighter paths and become more accurate at landing on target even in the absence of visual feedback about their movements. Two factors contribute to this adaptation: first, muscle spindle and golgi tendon organ feedback interpreted in relation to efferent commands provide information about movement trajectory, and second, somatosensory stimulation of the fingertip at the completion of a reach provides information about the location of the fingertip relative to the torso.
Document ID
20040088186
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Lackner, James R.
(Brandeis University Waltham, MA 02454, United States)
DiZio, Paul
Date Acquired
August 21, 2013
Publication Date
January 1, 2002
Publication Information
Publication: Advances in experimental medicine and biology
Volume: 508
ISSN: 0065-2598
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
Non-NASA Center
NASA Discipline Neuroscience

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