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FIG 2. Significant mean task-related BOLD responses for all subject and all tasks except addition, which failed to show any consistent activity. Maps were derived from the average of the baseline images of each subject. Activity is overlaid in color on a 3D rendering of a single subject’s brain viewed from the top. Activity displayed for the sequencing tasks include contralateral precentral and postcentral gyrus, bilateral middle frontal gyrus (MFG), medial frontal gyrus (medFG), and inferior parietal lobe (IPL). The subtraction and digit span tasks activated similar areas, including prefrontal cortex (PFC), IPL, amd MFG. The digit span task also recruited areas in visual cortex.
