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Comparison of five levels of motion sickness severity as the basis for grading susceptibilityThe motion sickness susceptibility of 275 healthy male subjects was measured quantitatively by a standardized laboratory procedure using a Stille rotational chair. The results, in terms of velocity of the chair and the number of active head movements, were combined into a single numerical score that represented the total stressor stimulus sustained in reaching, in turn, each of five specific criteria for diagnosing the severity of motion sickness. The stressor value (E factor) of a single head movement at each test rpm was adjusted to yield an equivalent susceptibility score (Coriolis Sickness Susceptibility Index, or CSSI) independent of the endpoint selected. Close agreement among the CSSI scores obtained at each endpoint was found in intercorrelations, test-retest reliability coefficients, and frequency distributions, which reflected the orderliness and stability in the appearance, ramification, and intensification of the acute symptomatology evoked in progressing from mild malaise to frank sickness.
Document ID
19740051130
Document Type
Reprint (Version printed in journal)
Authors
Miller, E. F., II
Graybiel, A.
(U.S. Naval Aerospace Medical Research Laboratory Pensacola, Fla., United States)
Date Acquired
August 7, 2013
Publication Date
June 1, 1974
Publication Information
Publication: Aerospace Medicine
Volume: 45
Subject Category
Biotechnology
Funding Number(s)
CONTRACT_GRANT: NASA ORDER T-81633
CONTRACT_GRANT: NASA ORDER T-5904B
Distribution Limits
Public
Copyright
Other
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