Analyses of the theta, lower alpha, and upper alpha powers revealed significant main effects of ROI after using gender as a covariate. The theta (F(1.43,95.69) = 18.42, p < 0.001), lower alpha (F(1.12,74.74) = 18.02, p < 0.001), and upper alpha (F(1.12,75.11) = 1.99, p < 0.001) powers were greatest in the occipital area, and lowest in the central area. However, the two groups did not differ in terms of theta (F(1.43,95.69) = 0.12, ns), lower alpha (F(1.12,74.74) = 0.46, ns), or upper alpha (F(1.12,75.11) = 0.01, ns) power. The averaged theta, lower alpha, and upper alpha powers of the BD and the non-BD groups are presented in Table 2.