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Tachygastria and motion sickness.

R M Stern, K L Koch, H W Leibowitz

    Aviation, Space, and Environmental Medicine
    |November 1, 1985
    PubMed
    Summary
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    Illusory self-motion induced by vection caused abnormal stomach rhythms (tachygastria) and motion sickness in susceptible individuals. Asymptomatic subjects maintained normal electrogastrograms (EGGs).

    Area of Science:

    • Neuroscience
    • Gastroenterology
    • Human Physiology

    Background:

    • Motion sickness is a common condition triggered by sensory conflict.
    • Electrogastrography (EGG) measures gastric electrical activity.
    • Vection, or illusory self-motion, can induce motion sickness symptoms.

    Purpose of the Study:

    • To investigate the relationship between illusory self-motion (vection) and gastric electrical activity.
    • To determine if vection induces tachygastria, an abnormal EGG pattern.
    • To correlate EGG changes with the development of motion sickness.

    Main Methods:

    • Cutaneous electrogastrograms (EGGs) were recorded from 21 healthy volunteers.
    • Participants were exposed to vection induced by a rotating drum.

    Related Experiment Videos

  • EGG frequencies were analyzed during vection, and symptoms of motion sickness were recorded.

    • Main Results:

    • Fourteen of 21 subjects developed motion sickness during vection.
    • In subjects experiencing motion sickness, EGG frequency shifted from normal (3 cpm) to tachygastria (5-8 cpm).
    • Six of seven asymptomatic subjects maintained a normal 3 cpm EGG pattern.

    Conclusions:

    • Illusory self-motion (vection) can induce tachygastria.
    • Tachygastria is associated with motion sickness in susceptible individuals.
    • EGG monitoring may help identify susceptibility to motion sickness.