Fig. 8

T-statistic map of the brain regions wherein there are significant differences in oxyhemoglobin a) and deoxyhemoglobin b) concentrations for the comparisons: migraine patients at T2 vs migraine patients at T0, migraine patients at T2 vs migraine patients at T1, migraine patients at T0 and at T2 vs controls. Intense blue color expresses significant reduction evaluated with paired Student’s t test, red color significant increase in migraine patients in basal condition compared to controls with the unpaired Student’s t test. The scale refers to t values