Figure 1.
Definition of the regions of interest (ROI), indicated in red. Each ROI was marked on the T1-weighted image (first echo, TE = 10 ms, the a. panel throughout the figure), and copied to the T2* map (indexed as b. in the figure). T2* values that were computed from eight echoes were read from the T2* map. The figure presents two neocortical ROIs (1), two medial-temporal ROIs (2), and two neostriatal ROIs (3). In T2* maps, the values above 100ms were set to zero to make GM/WM more easily visible.