Cross-cultural perception of sexual dimorphism in human face

Evolutionary psychology supposes that human behaviour consists of adaptive tools, functional and mutually intertwined, that help an individual to survive and reproduce. Human proneness to ascribe psychological characteristics, based on an individual's facial features, may present such an adaptive tool. Facial sex-typicality, the individual representation of facial features regarding a given sex (male/female), affects other ascribed characteristics. Potential functional associations between sexually dimorphic facial structure, perceived sex-typicality, and physiological and behavioural correlates are the very topic of this thesis. Following theoretical background, there are three studies listed as 'Published studies' (Study 1-3). Study 4, the submitted manuscript, has not been peer-reviewed yet. Study 5, already published, is listed as 'Appendix'. Study 1 (Fiala et al., 2021) compares the effects of perceived 'sex-typicality' and measured sexual shape dimorphism on ratings of attractiveness across five distant countries. Rating participants and stimuli faces were always from the same country. Whilst perceived female femininity is preferred across cultures, analysis of preference of perceived male masculinity and both-sex measured sex-typicality reveals cross-cultural discrepancies. Study 2 (Fiala et..