A case of mirror image agnosia and mirrored self-misidentification syndrome in schizophrenia without dementia or structural abnormalities

Neurocase. 2020 Oct;26(5):317-319. doi: 10.1080/13554794.2020.1799019. Epub 2020 Jul 29.


Delusional misidentification syndrome (DMS) is an umbrella term encompassing a variety of disorders. One rare form of DMS is the delusional misidentification of one's own reflection, known as "mirrored self-misidentification syndrome". In "mirror image agnosia", the ability to identify the image of self and/or others in the mirror is lost, while the ability to identify the mirror itself is preserved. To our knowledge, mirror image agnosia has never been described in a patient with schizophrenia. Herein we present a case of a patient with schizophrenia with severe delusions of both mirrored self-misidentification and mirror image agnosia without any structural abnormalities or dementia.

Keywords: Mirror agnosia; delusional misidentification syndrome; mirror image agnosia; psychosis; schizophrenia.

Publication types

  • Case Reports

MeSH terms

  • Agnosia / etiology
  • Agnosia / physiopathology*
  • Delusions / etiology
  • Delusions / physiopathology*
  • Facial Recognition / physiology*
  • Female
  • Humans
  • Middle Aged
  • Schizophrenia / complications
  • Schizophrenia / physiopathology*
  • Self Concept*