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EURASIP Journal on Advances in Signal Processing
Figure 5 | EURASIP Journal on Advances in Signal Processing

Figure 5

From: Time-frequency optimization for discrimination between imagination of right and left hand movements based on two bipolar electroencephalography channels

Figure 5

Montage of electrodes. This figure shows the montage of electrodes in the two BCI competition datasets. (A) The montage of electrodes in the BCI competition IV dataset IIa [26]. The arrows between the EEG electrodes show the three possible bipolar derivation pairs for bipolar recording of C3 and C4: a, p, and l. (B) The montage of electrodes in the BCI competition IV dataset IIb [8]. The arrows between the EEG electrodes show the bipolar derivation, where ⊕ is the signal electrode and ⊖ is the reference. The distance between two bipolar electrodes forming a channel for each subject is pre-determined (for details, see [8]). Only C3 and C4 (marked by ellipses) are used in this study for discrimination between imaginations of left and right hand movements.

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