Why is recognition of faces important?
First, recognition of a face helps to identify people, their sex, age, race etc. This information is important for social behavior. Furthermore, it can be used to recognize other people’s emotions. In verbal communication, not only is speech crucial, but also the movement of facial features, like the mouth and lips are important cues. Not only do deaf people use this information, but also everyone can use these cues, especially in noisy environments.
