ABSTRACT

Prosopagnosic patients are unable to recognize once familiar faces. This problem can arise even though, in some cases, the patients are able to accurately judge expression and gender from faces. This chapter explores the contribution of motion to face learning and face coding. It explores a question that whether motion can act as a cue to recognizing facial identities, tested under forced choice conditions. Theses experiments were carried out with HJA, a patient with poor perceptual encoding of static faces, but who has demonstrated an ability to use motion for expression judgements. The chapter assesses whether motion contributes selectively to expression decisions or whether it can provide a more general contribution to face coding and recognition. The differences between the true and untrue pairing for both static and moving faces were tested using the sign test. HJA was no better at learning the face-name pairings when shown moving faces compared to static ones.