ABSTRACT
Prosopagnosic patients are unable to perceive facial identity despite having intact residual perceptual processes and intellect. This chapter reports the cases of two patients with face processing impairments, who show different patterns of performance on tasks requiring, on the one hand, judgements of facial identity. And, on the other, they show judgements of emotional expression to static and moving images. One patient, a prosopagnosic with severely impaired perception of facial identity, is also poor at judging expressions and gender from static photographs of faces. The second patient shows relatively better processing of facial identity but is poor at judging the expressions of both static and moving faces. These cases suggest that the perception of emotional expression from faces can be fractionated, according to whether the facial information is conveyed by static or moving images. And also, both forms of coding expression are independent of those involved in encoding facial identity.
