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Vection and simulator sickness.

L J Hettinger1, K S Berbaum, R S Kennedy

  • 1Essex Corporation.

Military Psychology : the Official Journal of the Division of Military Psychology, American Psychological Association
|January 1, 1990
PubMed
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Simulator sickness, a type of motion sickness, occurs when visual cues in simulators conflict with physical sensations. This study confirms that visually induced self-motion (vection) is a key factor in developing simulator sickness.

Area of Science:

  • Human-Computer Interaction
  • Neuroscience
  • Psychology

Background:

  • Simulator sickness mimics real-world motion sickness symptoms.
  • Fixed-base simulators create sensory conflicts between visual and vestibular inputs.
  • This conflict can lead to an illusion of self-motion, known as vection.

Purpose of the Study:

  • To investigate the relationship between vection and simulator sickness.
  • To confirm if vection is a necessary precursor to simulator sickness in fixed-base simulators.

Main Methods:

  • Utilized a fixed-base simulator to induce visual-vestibular conflict.
  • Measured simulator sickness symptoms in users.
  • Assessed the presence and intensity of vection experienced by users.

Related Experiment Videos

Main Results:

  • Confirmed a direct relationship between vection and simulator sickness.
  • Vection was found to be a significant predictor of simulator sickness severity.
  • The illusion of self-motion directly correlated with reported sickness symptoms.

Conclusions:

  • Vection is a critical factor in the development of simulator sickness.
  • Sensory conflict theory accurately predicts simulator sickness when vection is present.
  • Findings support the necessity of addressing vection in simulator design to mitigate sickness.