Microscopy from Scientific Research

Top: Perfusion source maps for activated and control veins at two mixing times. Middle: The percentage change between task and baseline perfusion source maps showing mostly positive local percentage change near the activated regions. Little or no percentage change is observed in the control vein. Bottom: BOLD T-scores, from one-sided T-test, for the coronal sections containing each vein. Venous territories are marked with yellow dashed contours. Source data are provided in ref. 54 .

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