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Related Experiment Videos

Motion sickness: part I--a theory

R C Schneider, E C Crosby

    Aviation, Space, and Environmental Medicine
    |January 1, 1980
    PubMed
    Summary
    This summary is machine-generated.

    Space exploration may cause "space motion sickness," distinct from earthly motion sickness. Symptoms like visual hallucinations suggest brain cortex involvement, not just inner ear issues.

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    Area of Science:

    • Neuroscience
    • Space Medicine
    • Human Physiology

    Background:

    • Early space exploration reports documented cosmonaut and astronaut symptoms resembling motion sickness.
    • Symptoms included dizziness, nausea, vomiting, and visual disturbances like hallucinations and image inversion.

    Purpose of the Study:

    • To differentiate between terrestrial motion sickness and space-induced symptoms.
    • To propose a new definition for space motion sickness based on observed phenomena.

    Main Methods:

    • Review of early space exploration reports on astronaut and cosmonaut symptoms.
    • Comparison of reported space symptoms with those of terrestrial motion sickness and neurological conditions.

    Main Results:

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  • Terrestrial motion sickness primarily involves the inner ear.
  • Space-related symptoms, including visual hallucinations and body image inversion, suggest involvement of the temporoparieto-occipital cortex.

    • Conclusions:

    • Earthly motion sickness is primarily an inner ear/peripheral organ issue.
    • Space motion sickness involves higher brain functions, specifically the temporoparieto-occipital cortex, due to visual and spatial disorientation.