In upright intact faces, the N170 amplitude was largest for fixation
on the left and right eyes (Figs. 4–5). The amplitude did not differ significantly
between other fixation locations including the forehead, the
nasion, the nose, and the mouth. These results are in contrast to
McPartland et al. (2010) who reported larger N170 amplitude for
fixation on the nasion and mouth compared to fixation on the nose.
However, that study did not use an eye tracker to confirm gaze fixation
and participants might have moved their eyes slightly away from the
desired fixation location.