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Alternating prism exposure causes dual adaptation and generalization to a novel displacementIn two experiments, we examined the hypothesis that repeatedly adapting and readapting to two mutually conflicting sensory environments fosters the development of a separate adaptation to each situation (dual adaptation) as well as an increased ability to adapt to a novel displacement (adaptive generalization). In the preliminary study, subjects alternated between adapting their visuomotor coordination to 30-diopter prismatic displacement and readapting to normal vision. Dual adaptation was observed by the end of 10 alternation cycles. However, an unconfounded test of adaptive generalization was prevented by an unexpected prism-adaptive shift in preexposure baselines for the dual-adapted subjects. In the primary experiment, the subjects adapted and readapted to opposite 15-diopter displacements for a total of 12 cycles. Both dual adaptation and adaptive generalization to a 30-diopter displacement were obtained. These findings may be understood in terms of serial reversal learning and 'learning to learn'.
Document ID
19930067962
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Welch, Robert B.
(NASA Ames Research Center Moffett Field, CA, United States)
Bridgeman, Bruce
(NASA Ames Research Center Moffett Field, CA, United States)
Anand, Sulekha
(NASA Ames Research Center Moffett Field, CA, United States)
Browman, Kaitlin E.
(California Univ. Santa Cruz, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Perception & Psychophysics
Volume: 54
Issue: 2
ISSN: 0031-5117
Subject Category
Behavioral Sciences
Accession Number
93A51959
Funding Number(s)
PROJECT: RTOP 199-16-12-34
CONTRACT_GRANT: AF-AFOSR-90-0095
Distribution Limits
Public
Copyright
Other

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