Table 1.

Factor loading of the first two principal components (pcs) with 8 channels EEG signals

Channel	PC1	PC2
Fp1	0.77706	−0.10142
Fp2	0.89	−0.033565
T3	0.92419	−0.1243
T4	−0.32999	−0.31784
C3	−0.093568	0.98499
C4	−0.69095	−0.23418
O1	−0.73745	−0.1746
O2	−0.55609	−0.49955