FIGURE 3. Transaxial brain SPECT section of patient 2 during each scanning condition: preoperatively (left), postoperatively with STN stimulators on (middle), and postoperatively with STN stimulators off (right). Arrows show rCBF increase in right frontal cortex and, to lesser extent, left frontal cortex and ACC during STN stimulation in comparison with preoperatively and during no STN stimulation.

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