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Reliability of psychophysiological responses across multiple motion sickness stimulation testsAlthough there is general agreement that a high degree of variability exists between subjects in their autonomic nervous system responses to motion sickness stimulation, very little evidence exists that examines the reproducibility of autonomic responses within subjects during motion sickness stimulation. Our objectives were to examine the reliability of autonomic responses and symptom levels across five testing occasions using the (1) final minute of testing, (2) change in autonomic response and the change in symptom level, and (3) strength of the relationship between the change in symptom level and the change in autonomic responses across the entire motion sickness test. The results indicate that, based on the final minute of testing, the autonomic responses of heart rate, blood volume pulse, and respiration rate are moderately stable across multiple tests. Changes in heart rate, blood volume pulse, respiration rate, and symptoms throughout the test duration are less stable across the tests. Finally, autonomic responses and symptom levels are significantly related across the entire motion sickness test.
Document ID
20050000267
Acquisition Source
Ames Research Center
Document Type
Reprint (Version printed in journal)
Authors
Stout, C. S.
(NASA Ames Research Center Moffett Field, CA United States)
Toscano, W. B.
Cowings, P. S.
Date Acquired
August 22, 2013
Publication Date
January 1, 1995
Publication Information
Publication: Journal of vestibular research : equilibrium & orientation
Volume: 5
Issue: 1
ISSN: 0957-4271
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Neuroscience
NASA Center ARC

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