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Related Experiment Videos

Sex differences in tolerance to visually-induced motion sickness.

Moira B Flanagan1, James G May, Thomas G Dobie

  • 1Human Electrophysiology Laboratory, Department of Psychology, University of New Orleans, New Orleans, LA 70148, USA. mflanaga@uno.edu

Aviation, Space, and Environmental Medicine
|July 16, 2005
PubMed
Summary

Women report higher motion sickness susceptibility (MSS) than men, especially when volunteering for experiments. Provocative laboratory conditions reveal reliable sex differences in motion sickness.

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Area of Science:

  • Neuroscience
  • Human Physiology
  • Psychology

Background:

  • Women report motion sickness (MS) twice as often as men, though experimental data is inconsistent.
  • Previous research suggests women report higher MS history than men.
  • Individuals prone to MS may be less likely to volunteer for provocative experiments.

Purpose of the Study:

  • Replicate findings of higher MS history in women.
  • Investigate if MS-prone individuals avoid volunteering for experiments.
  • Examine sex-based differences in MS elicited by pseudo-Coriolis stimulation.

Main Methods:

  • Utilized a motion sickness (MS) History Questionnaire to assess sex and volunteer status effects on susceptibility (MSS).
  • Experiment 2 exposed participants to a rotating drum with and without head movement (pseudo-Coriolis stimulation).

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  • Measured vection and MS responses during visual motion stimulation.

    • Main Results:

    • Women exhibited higher MSS scores than men, particularly among volunteers.
    • Women reported significantly more MS and showed less tolerance during head movement.
    • No significant differences in vection were observed between sexes.

    Conclusions:

    • Laboratory manipulations that are more provocative of MS reveal reliable sex differences.
    • Sex differences in motion sickness are more apparent under specific experimental conditions.