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  • 1
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    Reliability of provocative tests of motion sickness susceptibility (1987)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: Test-retest reliability values were derived from motion sickness susceptibility scores obtained from two successive exposures to each of three tests: (1) Coriolis sickness sensitivity test; (2) staircase velocity movement test; and (3) parabolic flight static chair test. The reliability of the three tests ranged from 0.70 to 0.88. Normalizing values from predictors with skewed distributions improved the reliability.
    Keywords: AEROSPACE MEDICINE
    Type: Aviation, Space, and Environmental Medicine (ISSN 0095-6562); 58; A50-A54
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Cognitive performance deficits in a simulated climb of Mount Everest - Operation Everest II (1989)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Cognitive function at simulated altitude was investigated in a repeated-measures within-subject study of performance by seven volunteers in a hypobaric chamber, in which atmospheric pressure was systematically lowered over a period of 40 d to finally reach a pressure equivalent to 8845 m, the approximate height of Mount Everest. The automated performance test system employed compact computer design; automated test administrations, data storage, and retrieval; psychometric properties of stability and reliability; and factorial richness. Significant impairments of cognitive function were seen for three of the five tests in the battery; on two tests, grammatical reasoning and pattern comparison, every subject showed a substantial decrement.
    Keywords: AEROSPACE MEDICINE
    Type: Aviation, Space, and Environmental Medicine (ISSN 0095-6562); 60; 99-104
    Format: text
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    NASA TECHNICAL REPORTS
  • 3
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    Transfer of perceptual-motor training and the space adaptation syndrome (1987)
    In:  Other Sources
    Details
    Publication Date: 2019-07-12
    Description: Perceptual cue conflict may be the basis for the symptoms which are experienced by space travelers in microgravity conditions. Recovery has been suggested to take place after perceptual modification or reinterpretation. To elucidate this process, 10 subjects who repeatedly experienced a visual/vestibular conflict over trials and days, were tested in a similar but not identical perceptual situation (pseudo-Coriolis) to determine whether any savings in perceptual adaptation had occurred as compared to an unpracticed control group (N = 40). The practiced subjects experienced lessening dizziness and ataxia within and over sessions.
    Keywords: AEROSPACE MEDICINE
    Type: Aviation, Space, and Environmental Medicine (ISSN 0095-6562); 58; A29-A33
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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