Table 1.

In the left column, the ROIs names and the relative cortical areas whose activity is considered to be mostly reflected by the signals recorded from channels in the corresponding right column

ROIs (cortical areas)	Channels
Left/right hand motor area	C3/C4
Left/right somatosensory area	[CP1 CP3]/[CP2 CP4]
Left/right association area	P1/P2
Left/right visual area	O1/O2

We separately considered left and right hemispheres for a total of eight ROIs.