Sequential effects in attractiveness judgment for upright and inverted faces A Kondo, K Takahashi, K Watanabe |
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University of Tokyo, Japan
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| One-by-one decision making for sequentially presented stimulus is biased by the stimulus and response in the preceding decision (the sequential effect). Kondo et al. (2012) have shown that attractiveness judgments for faces are also biased toward those in the preceding trials. In the present study, we further investigated the sequential effects in face-attractiveness judgment, in terms of the influence of gender membership and face orientation. Forty-eight pictures of male and female faces were presented in a random sequence. Participants rated attractiveness of each face on a 7-point scale. All face stimuli were upright in one session, while the faces were inverted in the other session. The results showed the robust sequential effects irrespective of the orientation of the faces. Furthermore, in the upright face session, we found the weaker sequential effects when the gender of the face being rated and that in the preceding trial were same (between-gender dependency) than when they were different (within-gender dependency). In contrast, the between-gender and within-gender dependency were comparable in the inverted face session. These findings suggest that the sequential judgment for face-attractiveness is influenced by the gender membership of faces only when the faces are viewed in the upright orientation. |
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