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Vestibular problems in diving and in space.

O I Molvaer1

  • 1Norwegian Underwater Technology Centre A/S. NUTEC, Ytre Laksevåg.

Scandinavian Audiology. Supplementum
|January 1, 1991
PubMed
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Vestibular problems can arise from insufficient sensory input in challenging environments like diving and space flight. Understanding these causes is crucial for astronaut and diver safety.

Area of Science:

  • Neuroscience
  • Aerospace Medicine
  • Diving Physiology

Background:

  • The human sense of balance relies on abundant sensory input on solid ground.
  • In environments like diving and spaceflight, altered sensory input can lead to vestibular dysfunction.
  • Vestibular issues pose significant risks in extreme environments.

Purpose of the Study:

  • To identify and categorize the diverse causes of vestibular problems encountered during diving.
  • To explore the contributing factors to vestibular dysfunction in spaceflight, particularly space motion sickness.
  • To highlight the importance of understanding vestibular challenges for operational safety.

Main Methods:

  • Review of known etiological factors for vertigo in diving.
  • Analysis of mechanisms contributing to vestibular issues in microgravity.

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  • Identification of common and distinct causes between diving and spaceflight.

    • Main Results:

    • Diving vertigo can stem from sensory deprivation, illusions, barotrauma, decompression sickness, gas toxicity, and noise.
    • Spaceflight presents challenges including space motion sickness, and potentially some mechanisms overlapping with diving.
    • Conflicting or insufficient sensory information is a common theme in both environments.

    Conclusions:

    • Vestibular problems are multifactorial in diving and spaceflight.
    • Space motion sickness is a primary concern in space.
    • Further research is needed to mitigate vestibular risks for divers and astronauts.