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Dual adaptation and adaptive generalization of the human vestibulo-ocular reflexIn two experiments, we examined the possibility that the human vestibulo-ocular reflex (VOR) is subject to dual adaptation (the ability to adapt to a sensory rearrangement more rapidly and/or more completely after repeated experience with it) and adaptive generalization (the ability to adapt more readily to a novel sensory rearrangement as a result of prior dual adaptation training). In Experiment 1, the subjects actively turned the head during alternating exposure to a visual-vestibular rearrangement (target/head gain = 0.5) and the normal situation (target/head gain = 0.0). These conditions produced both adaptation and dual adaptation of the VOR but no evidence of adaptive generalization when tested with a target/head gain of 1.0. Experiment 2, in which exposure to the 0.5 gain entailed externally controlled (i.e., passive) whole body rotation, resulted in VOR adaptation but no dual adaptation. As in Experiment 1, no evidence of adaptive generalization was found.
Document ID
20040142130
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Welch, R. B.
(NASA Ames Research Center Moffett Field CA United States)
Bridgeman, B.
Williams, J. A.
Semmler, R.
Date Acquired
August 22, 2013
Publication Date
November 1, 1998
Publication Information
Publication: Perception & psychophysics
Volume: 60
Issue: 8
ISSN: 0031-5117
Subject Category
Life Sciences (General)
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Neuroscience
NASA Center ARC

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