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Facial bilateral symmetry is typically defined as fluctuating asymmetry of the face comparing random differences in facial features of the two sides of the face. [4] The human face also has systematic, directional asymmetry: on average, the face (mouth, nose and eyes) sits systematically to the left with respect to the axis through the ears ...
Fluctuating asymmetry (FA) is often considered to be the product of developmental stress and instability, caused by both genetic and environmental stressors. The notion that FA is a result of genetic and environmental factors is supported by Waddington's notion of canalisation, which implies that FA is a measure of the genome's ability to successfully buffer development to achieve a normal ...
The Fusiform face area (FFA) is an area that has been studied to be highly active when faces are being attended to in the visual field. A FFA is found to be present in both hemispheres, however, studies have found that the FFA is predominantly lateralized in the right hemisphere where a more in-depth cognitive processing of faces is conducted.
Chimpanzees, other primates, and humans produce asymmetrical facial expressions with greater expression on the left side of the face (right hemisphere of the brain). [13] Researchers also subjectively reported that the left side of the face was expressing more emotion using images of left-left chimeric faces.
The same was not true for images of people of colour.
Faces are an important class of visual stimuli for humans, and the perception of "faceness" is a critical part of social responsiveness. Because of the importance of the information conveyed by faces for social interaction, [23] humans should therefore have innate preferences for them as a category, with its associated prototype. This prototype ...
According to Rosado, “cousin face” is about feeling a sense of familiarity with unfamiliar faces. “it's like our brain's facial recognition system working overtime!” Why looks matter
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