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Related Experiment Video

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3D-Neuronavigation In Vivo Through a Patient's Brain During a Spontaneous Migraine Headache

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Published on: June 2, 2014

Brainstem activation in cluster headache: an adaptive behavioural response?

Nicola Morelli¹, Eugenia Rota, Sara Gori

¹Neurology Unit, Guglielmo da Saliceto Hospital, Piacenza, Italy. n.morelli@inwind.it

Cephalalgia : an International Journal of Headache

|January 30, 2013

Summary

Functional neuroimaging reveals brainstem and hypothalamic activation during cluster headache attacks. This suggests a potential defense mechanism in cluster headache pain.

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Area of Science:

Neuroscience
Medical Imaging

Background:

Functional neuroimaging offers insights into primary headache pathophysiology.
Previous studies identified brainstem activation in migraine and hypothalamus in cluster headache (CH).

Observation:

A patient with CH headache underwent functional magnetic resonance imaging (fMRI) during pain attacks.
fMRI scans were conducted during active CH attacks and pain-free states.

Findings:

Significant activation was observed in the bilateral red nucleus, ventral pons, and ipsilateral trigeminal root entry zone during CH pain.
The hypothalamic region also showed ipsilateral activation corresponding to the pain side.

Implications:

Activated brain structures are involved in motor function and reactive behaviors.
This activation may represent a defense or 'fight-or-flight' response during CH attacks.