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Effects of prolonged weightlessness on self-motion perception and eye movements evoked by roll and pitchSeven astronauts reported translational self-motion during roll simulation 1-3 h after landing following 5-7 d of orbital flight. Two reported strong translational self-motion perception when they performed pitch head motions during entry and while the orbiter was stationary on the runway. One of two astronauts from whom adequate data were collected exhibited a 132-deg shift in the phase angle between roll stimulation and horizontal eye position 2 h after landing. Neither of two from whom adequate data were collected exhibited increased horizontal eye movement amplitude or disturbance of voluntary pitch or roll body motion immediately postflight. These results are generally consistent with an otolith tilt-translation reinterpretation model and are being applied to the development of apparatus and procedures intended to preadapt astronauts to the sensory rearrangement of weightlessness.
Document ID
19880025753
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Reschke, Millard F.
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Parker, Donald E.
(NASA Johnson Space Center Houston, TX; Miami University, Oxford, OH, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1987
Publication Information
Publication: Aviation, Space, and Environmental Medicine
Volume: 58
ISSN: 0095-6562
Subject Category
Aerospace Medicine
Accession Number
88A12980
Funding Number(s)
CONTRACT_GRANT: NAS9-17413
CONTRACT_GRANT: NAS9-17267
Distribution Limits
Public
Copyright
Other

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