The purpose of this study was to demonstrate the effect of similar faces in
mothers on facial attractiveness. The research selectively recruited 15 male college
student volunteers, whose ages ranging from 19 to 26, as participants, and followed a 2
[facial type: father or mother] ×2[similarity type: similar (55%) or not similar (45%)]
double-factor within-subject experiment design. The dependent factor indicators are:
(1) the reaction time for the participants to score the facial picture’s attractiveness; (2)
the attractiveness score the participants assign to the facial picture; (3) the average
amplitude of the ERP components (N100, N170, VPP, and P300). The results showed
that male college students rated the attractiveness of similar faces of their mothers
significantly higher than that of non-similar faces, and the response time was shorter.
At the same time, the study used the event correlation potential technique (ERPs) to
investigate the EEG indicators of the subjects’ behavioral responses. The results showed
that: (1) the amplitude of components VPP and P300 induced by faces similar to themother was significantly higher than that induced by faces not similar to the mother;
(2) in terms of N100, N170, VPP and P300 components, the mother's face type image
induced a stronger ERP effect than the father's face type image.