title: Discriminating Thatcherised from typical faces in a case of prosopagnosia.
abstract: We report data from a prosopagnosic patient (PHD), and aged-matched control participants, from experiments where participants categorised individually presented emotional faces (experiment 1) and Thatcherised (from typical) faces (experiment 2). In experiment 2 participants also discriminated between simultaneously presented Thatcherised and typical faces. PHD was at chance categorising Thatcherised from typical faces. He was, however, able to discriminate between Thatcherised and typical faces, and partially able to categorise emotional faces. The results are discussed in terms of a loss of configural processing but preserved feature processing in PHD. The loss of configural processing impacts his categorisation of Thatcherised and typical faces, and his emotion processing, while his preserved feature processing supports his ability to categorise some emotional faces and his ability to discriminate between Thatcherised and typical faces.
authors.affiliation: Psychology, University of Southampton, Southampton SO17 1BJ, UK. natalie.mestry@soton.ac.uk
authors.forename: Natalie
authors.initials: N
authors.lastname: Mestry
authors.forename: Nick
authors.initials: N
authors.lastname: Donnelly
authors.forename: Tamaryn
authors.initials: T
authors.lastname: Menneer
authors.forename: Rosaleen A
authors.initials: RA
authors.lastname: McCarthy
mesh_terms: D000328:Adult; D015982:Bias; D016022:Case-Control Studies; D004192:Discrimination, Psychological / Q000502:physiology*; D004644:Emotions / Q000502:physiology*; D005149:Facial Expression; D007839:Functional Laterality; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D010364:Pattern Recognition, Visual / Q000502:physiology*; D010775:Photic Stimulation; D020238:Prosopagnosia / Q000473:pathology / Q000503:physiopathology*; D011930:Reaction Time / Q000502:physiology; D013702:Temporal Lobe / Q000473:pathology