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Effect of facial stimuli exposure time on evaluation of facial attractiveness


  • Mahmoud Rashidi is now at the Department of Social Sciences, University of Isfahan.

  • This study was financially supported by the Grant 88-GR-EDU-27 of Research Council of Shiraz University.

Farid Pazhoohi, Graduate Student, Department of Animal Science, Shiraz University, Shiraz 7144165186, Iran. Email:


Facial attractiveness has advantages both socially and sexually, and the human brain has evolved to perceive specific facial characteristics as attractive. The current research examined the effect of facial stimuli exposure time on facial attractiveness evaluations. In Experiment 1, 86 students observed 44 facial stimuli in short and long amounts of time. To eliminate any influence of repeated stimuli on the second observations, Experiment 2 was performed on 84 participants who observed the facial stimuli in either short or long durations. Differences in both experiments were significant. These studies showed that exposure time has an influence on the evaluation of facial attractiveness. Participants who were exposed to facial stimuli for a short amount of time perceived greater facial attractiveness than when they were exposed for a longer time to the same stimuli. In other words, faces were more beautiful when they were observed in a short amount of time, and this effect occurred regardless of gender.

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