Figure 6From: Time-frequency optimization for discrimination between imagination of right and left hand movements based on two bipolar electroencephalography channelsERD/ERS for subject 6. These time-frequency maps display significant ERD (red) and ERS (blue) for subject 6 (a typical example) in BCI competition IV IIb. The areas in the rectangles are the time-frequency ROI selected by the proposed methods based on TFDF (solid line) and F score (dashed line), respectively.Back to article page