Citations:prosopagnosia

1984 - The extent to which this function [recognition of faces] has become specialized is revealed by a brain disorder called prosopagnosia. A normal person can name someone from facial features alone, even if the features have changed substantially over the years. People with prosopagnosia are not able to make this association, but have few other neurological symptoms uther than a loss of some part of the visual field. — Robert Axelrod, The Evolution of Cooperation, p. 102