Figure 2.
Group-average difference maps (LD minus BD) of event-related theta source power. Time courses show theta power estimated to the anterior (aIFC) and posterior (pIFC) inferior frontal cortices, the sensorimotor (sMOT) areas and the occipital cortex (Occ) expressed as percent change from baseline. Targets evoked greater theta activity overall which was especially prominent in the rIFC. Theta power in the rIFC was reduced in BD compared to LD participants. Light-shaded vertical bars indicate the analyzed time windows: 50–150 ms (Occ) and the 380–510 ms for the anterior ROIs.