The main analyses were focused on the comparison between intact
and eyeless faces using the following within-subject factors: face
category (2: intact, eyeless), orientation (2: upright, inverted), fixation(6: forehead, nasion, left-eye, right-eye, nose, mouth) and hemisphere
(2: left, right) for the ERP analyses. In all ANOVAs Greenhouse–Geisser
adjusted degrees of freedom were used when necessary and pairwise
comparisons were Bonferroni corrected. Data were analyzed using
SPSS Statistics 21.