title: Movement cues aid face recognition in developmental prosopagnosia.
abstract: OBJECTIVE
  Seeing a face in motion can improve face recognition in the general population, and studies of face matching indicate that people with face recognition difficulties (developmental prosopagnosia; DP) may be able to use movement cues as a supplementary strategy to help them process faces. However, the use of facial movement cues in DP has not been examined in the context of familiar face recognition. This study examined whether people with DP were better at recognizing famous faces presented in motion, compared to static.
  
  
  METHODS
  Nine participants with DP and 14 age-matched controls completed a famous face recognition task. Each face was presented twice across 2 blocks: once in motion and once as a still image. Discriminability (A) was calculated for each block.
  
  
  RESULTS
  Participants with DP showed a significant movement advantage overall. This was driven by a movement advantage in the first block, but not in the second block. Participants with DP were significantly worse than controls at identifying faces from static images, but there was no difference between those with DP and controls for moving images.
  
  
  CONCLUSIONS
  Seeing a familiar face in motion can improve face recognition in people with DP, at least in some circumstances. The mechanisms behind this effect are unclear, but these results suggest that some people with DP are able to learn and recognize patterns of facial motion, and movement can act as a useful cue when face recognition is impaired.
authors.affiliation: Department of Psychology.
authors.forename: Rachel J
authors.initials: RJ
authors.lastname: Bennetts
authors.affiliation: Faculty of Health and Life Sciences.
authors.forename: Natalie
authors.initials: N
authors.lastname: Butcher
authors.affiliation: School of Psychological Sciences.
authors.forename: Karen
authors.initials: K
authors.lastname: Lander
authors.affiliation: Department of Psychology.
authors.forename: Robert
authors.initials: R
authors.lastname: Udale
authors.affiliation: Department of Psychology.
authors.forename: Sarah
authors.initials: S
authors.lastname: Bate
mesh_terms: D000368:Aged; D003463:Cues; D000066499:Facial Recognition / Q000502:physiology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009068:Movement; D020238:Prosopagnosia / Q000503:physiopathology*