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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
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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.

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.