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Related Experiment Videos

Vestibular function in migraine-related dizziness: a pilot study.

Joseph M Furman1, Patrick J Sparto, Michael Soso

  • 1Department of Otolaryngology, University of Pittsburgh School of Medicine, USA. furman@pitt.edu

Journal of Vestibular Research : Equilibrium & Orientation
|April 15, 2006
PubMed
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Migraine-related dizziness (MRD) impairs the semicircular canal-ocular reflex and increases postural sway. This suggests central vestibular pathway alterations may underlie MRD pathophysiology.

Area of Science:

  • Neuroscience
  • Ophthalmology
  • Otolaryngology

Background:

  • Migraine-related dizziness (MRD) involves vestibular symptoms integral to migraine.
  • The pathophysiology of MRD remains incompletely understood.

Purpose of the Study:

  • To define MRD pathophysiology by assessing vestibular reflexes and functions.
  • To generate hypotheses regarding MRD mechanisms.

Main Methods:

  • Evaluated semicircular canal-ocular reflex, otolith-ocular reflex, visual-vestibular interaction, vestibulo-spinal function, and visually induced postural sway.
  • Included subjects with MRD, migraine without dizziness, and headache-free controls, tested interictally.

Main Results:

  • Reduced semicircular canal-ocular reflex gain in MRD subjects.

Related Experiment Videos

  • Increased modulation component of the otolith-ocular reflex in MRD subjects.
  • MRD subjects showed increased postural sway and surface-dependent patterns during posturography.

    • Conclusions:

    • Hypothesize that altered central vestibular pathways, influenced by serotonergic activity, underlie MRD.
    • Suggest differential effects on semicircular canal vs. otolithic responses and vestibulo-ocular vs. vestibulo-spinal pathways.