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Region of interest analysis for the left striatum. Bar graph (a) indicates relative mean percentage change in BOLD signal in left dorsal striatum as a function of condition (unrelated vs. strategy, each subtracted from the complete baseline). Brackets indicate significant between-group differences in activation (p < .05). Error bars indicate standard error of the mean. Figure (b) displays axial and coronal slices of a priori defined anatomical ROI.
