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Related Experiment Videos

Pattern reversal visual evoked potentials in migraine subjects without aura

P F Moreira Filho1, A M Dantas

  • 1Department of Clinical Medicine (Neurology), Hospital Universitário Antônio Pedro, Universidade Federal Fluminense, Rio de Janeiro, Brasil.

Arquivos De Neuro-Psiquiatria
|December 1, 1994
PubMed
Summary

Visual evoked potential with pattern reversal (VEP-PR) is useful for diagnosing migraine without aura. This study found VEP-PR can detect abnormalities in migraine patients, aiding in diagnosis.

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Neurology

Background:

  • Migraine without aura is a common neurological disorder.
  • Accurate diagnosis is crucial for effective management.
  • Visual evoked potentials (VEPs) are used to assess the visual pathway's integrity.

Purpose of the Study:

  • To evaluate the utility of pattern reversal visual evoked potential (VEP-PR) in diagnosing migraine without aura.
  • To investigate potential differences in VEP-PR responses between migraine patients and controls (implied).

Main Methods:

  • Twenty-seven patients diagnosed with migraine without aura were studied.
  • Monocular VEP-PR was performed using black/white and red/green stimuli.
  • Stimuli were presented at a 1-meter distance with a 1 Hz frequency, analyzing 128 trials.

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Main Results:

  • A significant increase in P-100 latency was observed in 10 migraine patients.
  • Eight patients showed normal VEP-PR in black/white but increased latency with red/green stimuli.
  • One case exhibited absent red/green VEP-PR waves despite normal black/white responses.

Conclusions:

  • VEP-PR is a valuable tool for investigating migraine patients without aura.
  • Color (red/green) VEP-PR may reveal abnormalities not detected by standard black/white VEP-PR.
  • VEP-PR can aid in the objective assessment and diagnosis of migraine without aura.