Figure 10From: Time-frequency optimization for discrimination between imagination of right and left hand movements based on two bipolar electroencephalography channelsComparison between using four electrodes and using three electrodes on dataset IIa. This figure shows the comparison between performances of using four electrodes (two bipolar channels) and using three electrodes (two monopolar channels using Cz as common reference) for TFDF and F score, respectively, in session-to-session transfers on dataset IIa. Reducing the number of electrodes to three significantly deteriorates the classification performance (P<0.05).Back to article page