Fig. 4From: Central effects of galcanezumab in migraine: a pilot study on Steady State Visual Evoked Potentials and occipital hemodynamic response in migraine patientsGrand Average of Spectral components F (5 Hz), 2F (10 Hz) and 3F (15 Hz) over the channels Oz, O1 and O2 in controls and migraine patients at T0, T1, and T2Back to article page