title: Short-lasting episodes of prosopagnosia in Parkinson's disease.
abstract: BACKGROUND
  Prosopagnosia, the selective inability to recognize known faces, has been described in Alzheimer's disease and fronto-temporal dementia but is not expected to occur in Parkinson's disease (PD).
  
  
  RESULTS
  We report three PD patients who developed recurrent, paroxysmal and short-lasting episodes of prosopagnosia, before progressing to PD dementia (PDD). Hallucinations and other higher-order visual deficits - such as optic ataxia and micro/macropsia - were also seen.
  
  
  CONCLUSIONS
  Progressive signs of temporal and parietal dysfunction have been suggested to herald dementia in PD. The observation of prosopagnosia and other higher-order visuoperceptive defects in the transition to dementia, reinforce the importance of posterior-cortical deficit in PD.
authors.affiliation: Movement Disorders Unit, Neurology Department, Sant Pau Hospital, Universitat Autónoma de Barcelona, Institut d'Investigacions Biosanitàries, Sant Pau, and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas, C/Mas Casanovas, 90, Barcelona 08025, Spain.
authors.forename: C
authors.initials: C
authors.lastname: Villa-Bonomo
authors.forename: J
authors.initials: J
authors.lastname: Pagonabarraga
authors.forename: S
authors.initials: S
authors.lastname: Martínez-Horta
authors.forename: R
authors.initials: R
authors.lastname: Fernandez de Bobadilla
authors.forename: C
authors.initials: C
authors.lastname: Garcia-Sanchez
authors.forename: A
authors.initials: A
authors.lastname: Campolongo
authors.forename: J
authors.initials: J
authors.lastname: Kulisevsky
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D010300:Parkinson Disease / Q000150:complications* / Q000523:psychology*; D020238:Prosopagnosia / Q000209:etiology*