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Motion sickness and visual impairment.

Camille de Thierry de Faletans1, Eric Watelain1, Pascale Duché1

  • 1Laboratory « Jeunesse - Activité Physique et Sportive- Santé » (J-AP2S) UR 201723207F, University of Toulon, Toulon, France.

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Summary

Vision significantly impacts motion sickness (MS). Totally blind individuals experience less MS than partially sighted or sighted individuals, indicating vision is a key mediator, not essential for MS.

Keywords:
BlindnessMSSQSensory conflictSusceptibilityVisual system

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Area of Science:

  • Neuroscience
  • Sensory Systems
  • Human Physiology

Background:

  • Motion sickness (MS) arises from sensory conflicts between vestibular, visual, and somatosensory systems.
  • The precise role of vision in modulating MS susceptibility remains an area of investigation.

Purpose of the Study:

  • To investigate the influence of visual impairment on motion sickness susceptibility.
  • To compare MS susceptibility across totally blind, partially sighted, and sighted individuals.

Main Methods:

  • Administered the Motion Sickness Susceptibility Questionnaire (MSSQ) to 340 participants (170 visually impaired, 170 sighted).
  • Categorized visually impaired subjects by light perception (totally blind vs. partially sighted) and onset (congenital vs. acquired).
  • Assessed susceptibility to various transport modes under real-world conditions.

Main Results:

  • Totally blind individuals demonstrated significantly lower MS susceptibility than partially sighted (p = 0.001) and sighted (p < 0.001) subjects.
  • No significant difference in MS susceptibility was found between partially sighted and sighted subjects (p = 0.526).
  • Acquired totally blind individuals were less susceptible than congenitally blind individuals (p = 0.038), suggesting vision is a mediator, not essential for MS.

Conclusions:

  • Reduced or absent vision significantly decreases motion sickness susceptibility.
  • Vision plays a crucial role in mediating motion sickness, but its absence does not entirely eliminate susceptibility.
  • Even totally blind individuals can experience motion sickness, highlighting the contribution of other sensory systems.