Effect of facial symmetry on self-face recognition N Watanabe, N Saito |
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College of Informatics & Human Communication, Kanazawa Institute of Technology, Japan
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| Previous studies (eg Brédart, 2003, Perception, 32(7), 805-811; Rhodes, 1986, Memory & Cognition, 14(3), 209-219) have shown that the representation of one’s own face corresponds to a mirror-reversed image, not a normal (picture-oriented) one. The present study examined this issue with the use of morphed facial images between the normal and mirror-reversed ones. We photographed facial images of 23 male participants, then produced a morph series of a facial image (normal) into the same person's mirror-reversed one per participant. In experiment, two of the seven images of participants’ own face (0%[normal], 20%, 40%, 50%, 60%, 80%, and 100%[mirror-reversed]) were presented at once, and they were asked to rate whether the left face is similar to his own face compared with the right one in terms of a five-point scale, in accordance with the Scheffé’s method of paired comparison (Ura’s modified method). The results showed that 100%, 80%, and 0% were significantly judged as more similar to the self-face representation than the rest of the facial images, but there was no significant difference among the three. This suggests that the symmetric property of face might affect the self-face judgment task. |
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