64-channel sensor montage for the dry-EEG approach, coregistration with the MNI "Colin27" brain. Average sensor locations are obtained by averaging 3-D digitized (ELPOS, Zebris, Medical GmbH) electrode locations from ten individuals. Electrode labels are assigned based on the nearest neighbour mapping to the standard 10/5 montage. Nas, LPA and RPA denote nasion and left/right preauricular fiducials. *Only the 16 sensors shown in red were included in the present hardware configuration. Only 16 sensors were used to make the approach as cost-effective as possible and therefore amenable to potential clinical use.