Modern neuroscience has revealed how migraine affects the brain's structure, chemistry, and function — knowledge that's transforming treatment approaches.
The Brain Regions Involved in Migraine
Key brain areas implicated in migraine include:
- Amygdala: The brain's threat-detection center becomes hyperactive in migraine, triggering excessive fear and stress responses
- Prefrontal Cortex: Responsible for rational thinking and emotional regulation — its function is often impaired by migraine
- Hippocampus: Memory and context processing; chronic migraine can affect its volume and function
- HPA Axis: The stress hormone system that, when dysregulated, drives many physical symptoms of migraine
Neurochemistry of Migraine
Migraine involves imbalances or dysregulation of key neurotransmitters including serotonin, dopamine, norepinephrine, and GABA — all targets of current treatments.
How Treatment Changes the Brain
Both therapy and medication produce measurable changes in brain function in migraine. CBT, for example, has been shown to normalize amygdala reactivity.
Neuroplasticity and Migraine
The brain retains its ability to change throughout life. This neuroplasticity means that with appropriate treatment and practice, the neural patterns underlying migraine can genuinely change.