Parkinsonism Relat Disord 2013 Aug 14;19(8):751-4. Epub 2013 May 14.
Movement Disorders Unit, Neurology Service, Hospital de Clínicas, Federal University of Paraná, Curitiba, PR, Brazil.
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Am J Alzheimers Dis Other Demen 2013 Nov 27;28(7):671-8. Epub 2013 Oct 27.
1Hospital of Viareggio, Neurology Unit, Lido diCamaiore, Italy.
The delusional misidentification syndromes (DMSs) are psychopathologic phenomena in which a patient consistently misidentifies persons, places, objects, or events. Although often described in relation to psychotic states including schzofrenia, it is, nevertheless, widely considered that these syndromes have an anatomical basis because of their frequent association with organic brain disease; studies have pointed to the presence of identifiable lesions, especially in the right frontal lobe and adjacent regions, in a considerable proportion of patients. The purpose of this article is to examine the phenomenon in people with dementia. Read More
Biol Psychiatry 1993 Jan;33(1):22-32
Maudsley Hospital, London, UK.
Two series, each of 50 cases of delusional misidentification reported in the literature, were analyzed in order to study the interaction between organic and functional mental processes. The details of the time course of the development of the delusional misidentification and related mental symptoms, the phenomenology, and evidence of cognitive impairment and/or cerebral damage were recorded. The first series of cases included delusional misidentification either of place, and/or of persons; the second series was limited to cases, published since 1977, with delusional misidentification of person, who had had an electroencephalogram (EEG) and/or computerised tomographic (CT) brain scan. Read More
Psychol Med 1991 Nov;21(4):905-10
Section of Old Age Psychiatry, Institute of Psychiatry, London.
Two hundred and sixty case reports of misidentification syndromes were evaluated. One hundred and seventy-four patients had a Capgras syndrome misidentifying other persons, 18 a Fregoli syndrome, 11 intermetamorphosis, 17 reduplicative paramnesia and the rest had other forms or combinations of mistaken identification. Schizophrenia (127 cases), mostly of paranoid type, affective disorder (29), and organic mental syndromes including dementia (46) were the most common diagnoses in patients who misidentified others or themselves. Read More
J Neuropsychiatry Clin Neurosci 1998 ;10(2):194-8
Department of Psychiatry, Beth Israel Medical Center, New York, New York 10003, USA.
The delusional misidentification syndrome (DMS) has been associated with a range of neurological conditions. Three cases of DMS in patients with Parkinson's disease and dementia, treated with dopaminergic medications, are presented. It is postulated that DMS associated with parkinsonism results from a combination of dopaminergic psychosis and cognitive dysfunction involving the frontal lobe in particular. Read More