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Related Experiment Videos

Immersed false vertical room. A new motion sickness model

A C Coats1, W T Norfleet

  • 1Baylor College of Medicine, Houston, Texas 77030, USA.

Journal of Vestibular Research : Equilibrium & Orientation
|April 21, 1998
PubMed
Summary

A new WETF False Vertical Room (WFVR) model effectively simulates space motion sickness (SMS) by creating sensory conflicts. Susceptibility to WFVR sickness strongly correlates with terrestrial motion sickness and standing instability.

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Area of Science:

  • Human physiology
  • Aerospace medicine
  • Vestibular science

Background:

  • Space motion sickness (SMS) poses a significant challenge for astronauts.
  • Existing terrestrial models for SMS have limitations in replicating the sensory conflicts experienced in microgravity.

Purpose of the Study:

  • To evaluate the WETF False Vertical Room (WFVR) as a novel terrestrial model for space motion sickness (SMS).
  • To assess the efficacy of the WFVR in inducing motion sickness symptoms and identify provocative stimuli.

Main Methods:

  • The WFVR, an enclosure with visual cues, was immersed inverted and front-down in a pool.
  • 19 male and 3 female SCUBA divers performed tasks including setting clocks and head movements.
  • Motion sickness symptoms were recorded, and susceptibility was correlated with terrestrial motion sickness and standing instability.
Keywords:
Non-programmatic

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Main Results:

  • The WFVR induced motion sickness in 56% (inverted) and 36% (front-down) of subjects.
  • Pitch head movements and clock setting were the most provocative actions.
  • WFVR sickness susceptibility strongly correlated with terrestrial motion sickness (P < 0.005) and standing instability (P < 0.005).

Conclusions:

  • The WFVR is a promising terrestrial model for space motion sickness (SMS) due to its ability to create gravity-dependent sensory conflicts.
  • It effectively replicates the sensory conflicts and provocative stimuli of microgravity environments.
  • Further research may refine the WFVR to more closely mimic all aspects of the spaceflight sensory environment.