NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Effects of eating on vection-induced motion sickness, cardiac vagal tone, and gastric myoelectric activityThis study investigated the effect of food ingestion on motion sickness severity and its physiological mechanisms. Forty-six fasted subjects were assigned either to a meal group or to a no-meal group. Electrogastrographic (EGG) indices (normal 3 cpm activity and abnormal 4-9 cpm tachyarrhythmia) and respiratory sinus arrhythmia (RSA) were measured before and after a meal and during a subsequent exposure to a rotating drum in which illusory self-motion was induced. The results indicated that food intake enhanced cardiac parasympathetic tone (RSA) and increased gastric 3 cpm activity. Postprandial effects on motion sickness severity remain equivocal due to group differences in RSA baseline levels. During drum rotation, dysrhythmic activity of the stomach (tachyarrhythmia) and vagal withdrawal were observed. Furthermore, high levels of vagal tone prior to drum rotation predicted a low incidence of motion sickness symptoms, and were associated positively with gastric 3 cpm activity and negatively with tachyarrhythmia. These data suggest that enhanced levels of parasympathetic activity can alleviate motion sickness symptoms by suppressing, in part, its dysrhythmic gastric underpinnings.
Document ID
20050000747
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Uijtdehaage, S. H.
(University Park 16802)
Stern, R. M.
Koch, K. L.
Date Acquired
August 22, 2013
Publication Date
March 1, 1992
Publication Information
Publication: Psychophysiology
Volume: 29
Issue: 2
ISSN: 0048-5772
Subject Category
Aerospace Medicine
Distribution Limits
Public
Copyright
Other
Keywords
NASA Discipline Neuroscience
Non-NASA Center

Available Downloads

There are no available downloads for this record.
No Preview Available