title: [Mirror behaviors in dementia: the many mirror signs].
abstract: Mirror behaviors in advanced dementia are: the mirror sign of Abely and Delmas, where the patient stares at his face (environment-driven behavior of Lhermitte); non recognition of the self in the mirror (autoprosopagnosia and/or delirious auto-Capgras); mirror agnosia of Ramachandran and Binkofski where the patient do not understand the concept of mirror and its use; the psychovisual reflex, or reflex pursuit of the eyes when passively moving a minrror in front of a patient (intact vision); mirror writing (procedural learning). We describe four demented patients with mirror behaviors assessing brain mechanisms of self recognition, social brain and mental and visuo-spatial manipulation of images and objects.
authors.affiliation: Service de neurologie, Hôpital de Sion. joseph.ghika@hospitalvs.ch
authors.forename: Joseph
authors.initials: J
authors.lastname: Ghika
authors.affiliation: Laboratory for Cognitive and Neurological Sciences, Unité de Neurologie, Département de médecine, Université de Fribourg.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Diéguez
authors.affiliation: Service de neurologie, HUG, Genève.
authors.forename: Frédéric
authors.initials: F
authors.lastname: Assal
authors.affiliation: Centre Leenards de la mémoire, CHUV, Lausanne.
authors.forename: Jean-François
authors.initials: JF
authors.lastname: Demonet
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000377:Agnosia / Q000209:etiology*; D003704:Dementia / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D021641:Recognition, Psychology; D012649:Self Concept; D013028:Space Perception; D014796:Visual Perception