Figure 2

Theta-beta ratio between channel in each group. Figure 2 shows the difference in Theta-Beta ratio (TBR) between two groups for each channel. Each graph moves in a similar pattern for each channel. The width of the interval indicates standard errors. Even controlling for variation in age, sex, STAI score, and BDI score, significant differences showed in T3 and T4. *p < 0.05. STAI-S: State-Trait Anxiety Inventory, BDI: Beck Depression Inventory, ANCOVA: analysis of covariance.