Fig. 9From: Central effects of galcanezumab in migraine: a pilot study on Steady State Visual Evoked Potentials and occipital hemodynamic response in migraine patientsPlots reporting the values of oxyhemoglobin and deoxyhemoglobin levels averaged over the channels proved to be significant with the Student’s t test. In a) the comparison between T0 and T2 in b) the comparison between T1 and T2 (p < 0.01 for oxy and deoxyhemoglobin)Back to article page