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Related Experiment Video

Updated: May 1, 2026

3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache
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An inability to exclude visual noise in migraine.

Marc S Tibber1, Maria G Kelly, Ashok Jansari

  • 1Institute of Ophthalmology, University College London, London, United Kingdom.

Investigative Ophthalmology & Visual Science
|March 29, 2014
PubMed
Summary

People with migraine struggle with visual motion perception due to an inability to filter out visual noise. This difficulty in excluding distracting elements is a key aspect of visual dysfunction in migraine.

Keywords:
coherencemigrainemotionnoisevision

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Area of Science:

  • Neuroscience
  • Ophthalmology
  • Visual Perception

Background:

  • Individuals with migraine often exhibit impaired motion perception.
  • This impairment has been attributed to issues with global motion signal pooling, local direction coding, or noise exclusion.

Purpose of the Study:

  • To investigate the specific mechanisms underlying impaired motion processing in migraine.
  • To differentiate between deficits in local processing, global pooling, and noise exclusion.

Main Methods:

  • A motion-coherence task and motion-equivalent noise tasks were administered to 22 participants with migraine and 22 controls.
  • Equivalent noise paradigms for orientation and size judgments were used to assess visual dimension specificity.

Main Results:

  • Participants with migraine showed significantly higher motion-coherence thresholds compared to controls.
  • No significant differences were found in local or global motion processing, or in equivalent noise tasks for orientation and size, between groups.

Conclusions:

  • Migraine-related deficits in motion perception are primarily due to an impaired ability to exclude visual noise.
  • This noise exclusion deficit may be a central feature of visual dysfunction in migraine, potentially unifying existing research findings.