FIGURE 4. Cortical regions whose increases in rCBF significantly correlated with observed improvement in motor function during STN stimulation in comparison with preoperatively and during no STN stimulation. Significant relationship was detected between motor UPDRS scores and rCBF in right supplementary motor area (pre-SMA) and in small area of adjacent ACC referred to as anterior cingulate motor area. Results are displayed as SPM projections in 3 orthogonal views (A) and on 3-dimensional template (B), with cutoff of P < 0.005 (uncorrected).
