Fig. 4.

Source reconstruction for expected deviant sequences. A: cortical activation maps at the P300 peak for each group highlighting stronger responses in the bilateral superior frontal cortex. B: activation time courses in picoampere-meters, comparing group differences for this region of interest (ROI) by cluster analyses (see Fig. 2 for details). C: cortical activation maps at the late phase of the P300 component exhibiting higher left dorsolateral prefrontal cortex activation in the ASD group. D: activation time courses of group differences in this ROI by cluster analyses.