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Preference for Average Anatomy in African American Faces.

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Summary

The attractiveness of averaged African American faces was tested. Composite images of male and female faces were rated significantly more attractive than individual faces, supporting the koinophilia principle across ethnicities.

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Area of Science:

  • Psychology
  • Anthropometry
  • Computer Vision

Background:

  • Koinophilia, the principle that average facial features are perceived as more attractive, has been primarily studied in Caucasian populations.
  • The applicability of koinophilia to other ethnicities, specifically African Americans, remains underexplored.

Purpose of the Study:

  • To investigate whether averaged composite images of African American male and female faces are perceived as more attractive than individual facial images.
  • To determine if the principle of koinophilia extends to the perception of facial attractiveness within the African American demographic.

Main Methods:

  • Development of composite facial images for male and female African American cohorts using Python for landmark detection and image alignment.
  • Utilizing the Chicago Face Database to source 40 male and 40 female African American facial images.
  • Administering online surveys via Amazon Mechanical Turk to collect attractiveness ratings on a 7-point Likert scale.

Main Results:

  • Averaged composite images were rated significantly higher in attractiveness compared to individual images across both male and female cohorts (p<0.0001).
  • The male composite demonstrated significantly higher attractiveness ratings across all tested ethnicities (p<0.01).
  • The female composite was also rated significantly more attractive, with exceptions for Native American and Hispanic respondents (all p<0.01), and preferences varied by geographic location.

Conclusions:

  • The study largely supports the koinophilia effect in the perception of African American facial attractiveness.
  • Middle-aged respondents (40-60+) exhibited a stronger preference for composite facial images compared to younger respondents (18-39).
  • Ethnic and geographic variations in attractiveness preferences for averaged faces were observed, highlighting the complexity of facial perception.