title: Specular right-left disorientation, finger-agnosia, and asomatognosia in right hemisphere stroke.
abstract: OBJECTIVE
  To search for specular disorders of body representations in right hemisphere stroke.
  
  
  BACKGROUND
  Mirror self-misidentification, asomatognosia, and personal confabulation are similar to body illusions or changes in sensorial or sensorimotor perceptions generated by mirror in right brain damage patients with body image disorders.
  
  
  METHODS
  Prospective study. Ten consecutive right-handed patients (1) performed body part naming and localization tasks and (2) were examined for asomatognosia at the acute phase of stroke, then at least 3 months after stroke, under 3 test conditions: without a mirror, with a conventional mirror, and with an inverted mirror. Video recordings of the tests were analyzed to assess performance.
  
  
  RESULTS
  Analysis of variance of the data confirmed that the interaction of mirror's conditions (specifically without a mirror vs. an inverted mirror) with subtest type was significant. The errors are symmetrically distributed. Asomatognosia was "reactivated" in 10 patients who experienced asomatognosia during the acute phase. No particular pattern characterized the clinical manifestations of asomatognosia.
  
  
  CONCLUSIONS
  A causal conflict of sensorial input is proposed. The specific symptoms observed would suggest the existence of an incomplete specular Gerstmann syndrome and/or Anton Babinski syndrome. These results emphasize the role of specular input in the generation of body representations and self-awareness.
authors.affiliation: Regional Institute for Rehabilitation, University of Nancy, France. jeanmarie.beis@irr.u-nancy.fr
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Beis
authors.forename: Jean
authors.initials: J
authors.lastname: Paysant
authors.forename: Diana
authors.initials: D
authors.lastname: Bret
authors.forename: Loic
authors.initials: L
authors.lastname: Le Chapelain
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: André
mesh_terms: D000377:Agnosia / Q000175:diagnosis / Q000209:etiology*; D001828:Body Image; D001921:Brain / Q000473:pathology*; D002544:Cerebral Infarction / Q000150:complications* / Q000473:pathology*; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D009483:Neuropsychological Tests; D012649:Self Concept; D012678:Sensation Disorders / Q000175:diagnosis / Q000209:etiology*; D012720:Severity of Illness Index