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Vestibular response to pseudorandom angular velocity input: progress report.

C S Lessard1, W C Wong

  • 1Industrial Engineering Department, Texas A&M University, College Station 77843.

Aviation, Space, and Environmental Medicine
|September 1, 1987
PubMed
Summary
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Space motion sickness affects about 50% of astronauts. Researchers are modeling the vestibular system

Area of Science:

  • Space medicine
  • Neuroscience
  • Human physiology

Background:

  • Space motion sickness (SMS) incidence increased from 0% in early Apollo missions to approximately 50% in later missions (Apollo 8 onwards), including Shuttle and Skylab.
  • Space adaptation syndrome (SAS) remains a significant challenge for astronaut health and mission success.

Purpose of the Study:

  • To develop a model of the vestibular response to aid in understanding space motion sickness.
  • To identify potential predictors for individual susceptibility to space adaptation syndrome.

Main Methods:

  • Analysis of the human vestibular system's response.
  • Application of a pseudorandom angular velocity input stimulus.
  • Development of a mathematical model for vestibular response prediction.

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Main Results:

  • Established a method for analyzing vestibular responses to specific stimuli.
  • Laid groundwork for predicting space motion sickness susceptibility.
  • Provided insights into the physiological mechanisms underlying space adaptation syndrome.

Conclusions:

  • The developed method offers a pathway to analyze vestibular function in microgravity.
  • Modeling the vestibular system is crucial for mitigating space motion sickness.
  • Further research can refine predictive models for astronaut health.