Fig. 2From: Altered functional connectivity of the marginal division in migraine: a resting-state fMRI studyMrD functional connectivity averaged over subject in the brain. Warm and cool colors represent positive and negative correlations. NC, normal control; EM, episodic migraine; CM, chronic migraine; MOH+CM, medication overuse headache plus chronic migraine;L, left MrD; R, right MrDBack to article page