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    Area of Science:

    • Evolutionary Psychology
    • Developmental Psychology
    • Human Aesthetics

    Background:

    • Limited research exists on developmental changes in human body attractiveness perception.
    • No prior studies have investigated the development of Leg-to-Body Ratio (LBR) preferences.

    Purpose of the Study:

    • To investigate whether Leg-to-Body Ratio (LBR) preferences are innate or acquired through socialization and biological changes.
    • To determine the developmental trajectory of LBR preferences from early childhood to adulthood.

    Main Methods:

    • A cross-sectional study involving 450 Polish participants aged 3 to 20 years.
    • Participants evaluated the attractiveness of male and female figurines with varying LBRs.
    • Preference assessment based on figurine selection.

    Main Results:

    • Children under 8 years showed no specific LBR preference.
    • Emergence of preference for average leg length around age 9.
    • Preference for higher-than-average LBR was not observed until age 15.

    Conclusions:

    • Leg-to-Body Ratio (LBR) preferences are not static and change significantly during development.
    • The findings suggest a developmental shift in aesthetic preferences related to body proportions.
    • LBR preferences appear to be influenced by factors beyond early childhood innate predispositions.