Table 1.

Brain areas and the respective selected channels for the effective connectivity analysis.

Areas	Channels
Left anterior	F1 F3 F5
Right anterior	F2 F4 F6
Left motor	FC1 FC3 FC5 C1 C3 C5
Right motor	FC2 FC4 FC6 C2 C4 C6
Frontal midline	FCz Cz
Left parietal	CP3 CP5 TP7 P3 P5 P7
Right parietal	CP6 CP4 TP8 P4 P6 P8
Parietal midline	CPz Pz
Left occipital	PO3 PO7 O1
Right occipital	PO4 PO8 O2

For each session, the measures applied in this work were derived from single trials, normalized to the baseline information and then averaged over channels.