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Sleep and vestibular adaptation: implications for function in microgravityOptimal human performance depends upon integrated sensorimotor and cognitive functions, both of which are known to be exquisitely sensitive to loss of sleep. Under the microgravity conditions of space flight, adaptation of both sensorimotor (especially vestibular) and cognitive functions (especially orientation) must occur quickly--and be maintained--despite any concurrent disruptions of sleep that may be caused by microgravity itself, or by the uncomfortable sleeping conditions of the spacecraft. It is the three-way interaction between sleep quality, general work efficiency, and sensorimotor integration that is the subject of this paper and the focus of new work in our laboratory. To record sleep under field conditions including microgravity, we utilize a novel system called the Nightcap that we have developed and extensively tested on normal and sleep-disordered subjects. To perturb the vestibular system in ground-based studies, we utilize a variety of experimental conditions including optokinetic stimulation and both minifying and reversing goggle paradigms that have been extensively studied in relation to plasticity of the vestibulo-ocular reflex. Using these techniques we will test the hypothesis that vestibular adaptation both provokes and is enhanced by REM sleep under both ground-based and space conditions. In this paper we describe preliminary results of some of our studies.
Document ID
20040172821
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hobson, J. A.
(Massachusetts Mental Health Center United States)
Stickgold, R.
Pace-Schott, E. F.
Leslie, K. R.
Date Acquired
August 22, 2013
Publication Date
January 1, 1998
Publication Information
Publication: Journal of vestibular research : equilibrium & orientation
Volume: 8
Issue: 1
ISSN: 0957-4271
Subject Category
Life Sciences (General)
Funding Number(s)
CONTRACT_GRANT: MH 13923
CONTRACT_GRANT: MH 48832
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Neuroscience
Review
Review, Tutorial
Non-NASA Center

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