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Updated: Oct 22, 2025

Investigating Migraine-Like Behavior Using Light Aversion in Mice

Investigating Migraine-Like Behavior Using Light Aversion in Mice

Published on: August 11, 2021

Investigating Migraine-Like Behavior Using Light Aversion in Mice.

Mengya Wang¹, Bianca N Mason², Levi P Sowers³

¹Department of Neuroscience and Pharmacology, University of Iowa.

Journal of Visualized Experiments : Jove

|August 30, 2021

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This summary is machine-generated.

Researchers refined the light/dark assay to accurately measure photophobia in mice, a key migraine symptom. This improved method helps distinguish light aversion from anxiety, advancing migraine research.

Area of Science:

Neuroscience
Behavioral Science

Background:

Migraine is a neurological disorder featuring headache and photophobia (light hypersensitivity).
Light aversion in mice serves as a behavioral model for photophobia.
Distinguishing light aversion from anxiety is crucial for accurate migraine research.

Purpose of the Study:

To describe a modified light/dark assay for assessing photophobia in mice.
To introduce modifications that improve the accuracy of the light/dark assay.
To differentiate light-aversive behavior from anxiety using the open field assay.

Main Methods:

Utilized a modified light/dark assay with pre-exposures and adjustable light intensities (55–27,000 lux).
Employed the open field assay to control for anxiety-related behaviors.

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Applied these assays to study the effects of calcitonin gene-related peptide (CGRP) and optogenetic stimulation.

Main Results:

The modified light/dark assay effectively measures light aversion in mice.
The combination of assays allows for the distinction between photophobia and anxiety.
The paradigm was successfully applied to investigate CGRP effects and brain stimulation.

Conclusions:

Refined light/dark and open field assays provide a robust method for studying migraine-related photophobia in mice.
These assays facilitate research into the mechanisms of migraine and potential therapeutic targets.
The methodology is applicable to various migraine research models, including pharmacological and optogenetic studies.