Investigate the effect of single brain sources on the EEG voltage map

EEG electrodes are represented as yellow spheres, the voltage map is colour coded (red: positive values, blue: negative values).
'Brain' source slider enables you to change the source location (if clicked, key arrows wors as well), 'Gamma' slider enables you to change the contrast, radio button X, Y and Z permits to change the orientation of the dipole source.