ROC curves (a) EEG modality with different combinations (using six-bilateral electrodes red-line, VLPFC blue-line, DLPFC green-line and FPA black-line), (b) fNIRS modality with different combinations (using six-channels red-line, VLPFC blue-line, DLPFC green-line and FPA black-line), and (c) fusion of EEG and fNIRS with different combinations (two-electrodes and two-channels within: the VLPFC red-line, DLPFC blue-line, FPA green-line and six-bilateral electrodes black-line and six-channels cyan line).