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Related Experiment Videos

Space motion sickness.

J L Homick1

  • 1Medical Sciences Division, NASA-Johnson Space Center, Houston, TX 77058, USA.

Acta Astronautica
|October 1, 1979
PubMed
Summary
This summary is machine-generated.

Astronauts experienced significant space motion sickness, but adapted over time. Research focuses on sensory conflict, drug therapies, and vestibular training to predict and prevent this condition.

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Area of Science:

  • Space Medicine
  • Neuroscience
  • Human Physiology

Background:

  • Space motion sickness (SMS) significantly impacted Skylab astronauts, causing severe symptoms.
  • Recovery was observed within 3-5 days, with crewmembers becoming immune to induced sickness after 8 days.
  • SMS poses a threat to future space mission well-being and operational efficiency.

Purpose of the Study:

  • To understand the causes of SMS and develop methods for prediction, prevention, and treatment.
  • To minimize the impact of SMS on Space Shuttle crew operations through interdisciplinary research.
  • To investigate the sensory conflict theory and fluid shift theory in relation to SMS.

Main Methods:

  • Investigating behavioral and neurophysiological consequences of sensory conflict.

Related Experiment Videos

  • Examining the relationship between cephalad fluid shifts and SMS.
  • Developing predictive tests for SMS susceptibility through various correlations and parabolic flight studies.
  • Researching anti-motion sickness drugs and vestibular training methods, including biofeedback and autogenic therapy.

    • Main Results:

    • Research has largely discounted the fluid shift theory.
    • Effective drug combinations (promethazine/ephedrine, scopolamine/dexidrine) have been identified.
    • Vestibular training methods are being developed to enhance adaptation and retention.

    Conclusions:

    • SMS causes are not fully understood, and effective prediction/prevention methods are still needed.
    • Current research explores sensory conflict, drug countermeasures, and vestibular training.
    • Further validation of predictive tests and countermeasures requires controlled space flight experiments.