FA-1: Motion Sickness: Pathophysiology & Clinical Presentation

Motion sickness is common in the general population and may be more prevalent in specific vestibular disorders.  Hypotheses regarding the underlying mechanism for motion sickness focus on the vestibular system, with otolithic mass asymmetry and / or intralabyrinthine imbalance as likely contributors.  Aviation and microgravity studies have provided a basis for our understanding of motion sickness physiology; however, these mechanisms are complex and may vary depending on the offending stimulus.  This presentation provides the participant with the updated understanding of the pathophysiology of motion sickness and how this may present in a patient with dizziness.   Recommended clinical tools and protocol additions will be reviewed and future directions will be discussed.

Learning Objectives:

  • To identify the presumed pathway for motion sickness generation
  • To review available clinical tools for assessment motion sickness
  • To describe how motion sickness may present in various vestibular pathologies