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Motion sickness severity and physiological correlates during repeated exposures to a rotating optokinetic drumFifty-two subjects were exposed to a rotating optokinetic drum. Ten of these subjects who became motion sick during the first session completed two additional sessions. Subjects' symptoms of motion sickness, perception of self-motion, electrogastrograms (EGGs), heart rate, mean successive differences of R-R intervals (RRI), and skin conductance were recorded for each session. The results from the first session indicated that the development of motion sickness was accompanied by increased EGG 4-9 cpm activity (gastric tachyarrhythmia), decreased mean succesive differences of RRI, increased skin conductance levels, and increased self-motion perception. The results from the subjects who had three repeated sessions showed that 4-9 cpm EGG activity, skin conductance levels, perception of self-motion, and symptoms of motion sickness all increased significantly during the drum rotation period of the first session, but increased significantly less during the following sessions. Mean successive differences of RRI decreased significantly during the drum rotation period for the first session, but decreased significantly less during the following sessions. Results show that the development of motion sickness is accompanied by an increase in gastric tachyarrhythmia, and an increase in sympathetic activity and a decrease in parasympathetic activity, and that adaptation to motion sickness is accompanied by the recovery of autonomic nervous system balance.
Document ID
19910046817
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Hu, Senqi
(Pennsylvania State Univ. University Park, PA, United States)
Grant, Wanda F.
(Pennsylvania State Univ. University Park, PA, United States)
Stern, Robert M.
(Pennsylvania State Univ. University Park, PA, United States)
Koch, Kenneth L.
(Pennsylvania State University University Park and Hershey, United States)
Date Acquired
August 14, 2013
Publication Date
April 1, 1991
Publication Information
Publication: Aviation, Space, and Environmental Medicine
Volume: 62
ISSN: 0095-6562
Subject Category
Aerospace Medicine
Accession Number
91A31440
Funding Number(s)
CONTRACT_GRANT: NAG9-118
Distribution Limits
Public
Copyright
Other

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