Besides biology and culture, there are other factors determining physical attractiveness. The more familiar a face seems, the more highly it is judged, an example of the mere exposure effect. It is seen that when many faces are combined into a composite image (through computer morphing), people find the resultant image as familiar and attractive, and even more beautiful than the faces that went into it. One interpretation is that this shows an inherent human preference for prototypicality. That is, the resultant face emerges with the salient features shared by most faces and hence becomes the prototype. The prototypical face and features is therefore perceived as symmetrical and familiar. This reveals an "underlying preference for the familiar and safe over the unfamiliar and potentially dangerous" (Berscheid and Reis, 1998). However, critics of this interpretation point out that compositing computer images also has the effect of removing skin blemishes such as scars and generally softens sharp facial features. The mere exposure effect is a psychological artifact well known to advertisers: people express undue liking for things merely because they are familiar with them. ... Prototypes or prototypical instances combine the most representative attributes of a category. ...
Classical conceptions of beauty are essentially a celebration of this prototypicality. It celebrates the extra-ordinary (from the latin root meaning over or extremely-ordinary) as the prototype or most beautiful. Prototypes or prototypical instances combine the most representative attributes of a category. ...
The phenotype of one's own mother during the early years of childhood becomes the basis for the perception of optimal body mass index (BMI). This shows the importance of prototypicality in the judgment of beauty, and also explains the emergence of similarity of the perception of attractiveness within a community or society, which shares a gene pool. Greg Flesch is a guitarist and musician, best known for his work with the rock bands Daniel Amos and The Swirling Eddies (credited as Gene Pool). Flesch also works in the Atmospheric Laser Spectroscopy Group at the Jet Propulsion Laboratory in Pasadena, California, writing software for the groups tunable...