Why symmetry is an attractive feature

For people, faces are an important source of social information. A feature of the face that is quickly noticed is the attraction. Studies have emphasized that symmetry and sexual dimorphism (ie, the masculinity or femininity of a face) are important factors to determine the attractiveness of a face. But why are these characteristics attractive?

The idea is that these traits advertise gene quality or other qualities, such as fertility. Another view is that the preference for these characteristics appears through sight and therefore does not involve any potential biological factors. The face certainly has the spouse's ability to advertise 'quality' and a way to verify this idea is to observe the internal relationships between these ' quality ads '.

Researchers are currently collecting human conceptual data about facial beauty at http://www.alittlelab.com. This page also gives information about their work. (Photo: Science Library)
In the work published in the May 7 edition of PLoS ONE, Anthony Little, University of Stirling and colleagues show symmetrical parameters and gender dimorphism from related faces in humans, both Europeans and African hunter-gatherers, and in primates are not human. Among all models, symmetrical men have a more balanced face proportion and proportionate females have more feminine face proportions.

Therefore, these findings support the claim that gender duality and facial symmetry are advertising signs for quality by providing evidence of a two-link biologic mechanism. This point in the development process. For example, individuals who can withstand disease can develop a balanced and bisexual gender. The work also shows that faces may advertise quality in different population groups and even in different primates.