Dual Adaptive Filtering by Optimal Projection Applied to Filter Muscle Artifacts on EEG and Comparative Study

Figure 6

Amount of removed cerebral signals per 20 s page (0: no difference (10%); 1: (); 2: (); 3: (65–90%); 4: no longer identifiable (90%). For example, the table can be read as follows: among the 71 pages with an alpha rhythm, the experts noticed no significant difference in the alpha signals on 96% of pages.