The analysis for the frontopolar source (Fp1/2) accompanying the bilateral centrotemporal sinks for factor 305 revealed highly significant intensity, F(1,63) = 27.2, p < .0001, and Group × Intensity effects, F(1,63) = 7.71, p = .007, stemming from a greater high-larger-than-low-intensity amplitude difference for controls compared with patients (Figure 3B, top). Across groups, this source was also greater over the right than left frontopolar site: hemisphere main effect, F(1,63) = 4.28, p = .04.
