Fig. 1From: Cerebral gray matter volume in patients with chronic migraine: correlations with clinical featuresSPM regions superimposed on a high-resolution T1-weighted scan show decreased GM volume in patients with CM compared to HCs (p < 0.001 uncorrected). Areas with significantly reduced GM volume are observed in the left amygdala (AM), left temporal pole (TP), and left hippocampus (HI). L = left, R = rightBack to article page