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Electrode montage with (A) 46 (children) and (B) 73 (adults) active electrodes, EOG, vertical electrooculogram recorded by two active elecrodes beneath the right and left eye; GND, ground electrode [nose tip (children), Fpz (adults)]; REF, reference electrode on the left ear lobe. Electrodes shaded in gray were excluded from further analyses due to artifacts. Electrodes marked by a prominent circle were included in the statistical analyses.
