Fig. 4
From: Dynamic brainstem and somatosensory cortical excitability during migraine cycles
Evoked current intensity of S1 activation during migraine cycle. Top: S1 current intensity over time (− 50 to 100 ms) within one representative migraine cycle for patient 1 and patient 2. Bottom: Peak S1 activation during migraine cycle. S1, primary somatosensory cortex; Pre2, 24–48 h before headache onset; Pre1, within 24 h after headache onset; Ictal, during migraine attack; Post1, within 24 h after headache offset