Figure 4

Topographic maps showing ERD and t values. Grand average maps of ERD/ERS in alpha and beta bands during active (A) and passive (B) movements, imagination of movement (C), active-passive movement (D) (R: right, L: left, BI: bimanual). Blue color coding indicates maximal ERD. T-maps of ERD/ERS in alpha and beta bands thresholded at p<0.05 (|t|>2.306).