Fig. 3.

Comparisons of activation patterns between different experimental conditions in the experimental group. (A) The grand average temporal ERD (C3) under the 4 conditions. The shaded region represents standard deviation of temporal ERD across subjects and the solid line represents the average value. (B) The grand average mean ERD (C3) under the 4 conditions. (C) Spatial distribution of the grand average mean ERD under the 4 conditions.