Saturday, April 17, 2021

Rolf Degen summarizing... Neurology patient developed the delusion that her daughter had been replaced by a different "replica" at each visit

Evolution of Capgras syndrome in neurodegenerative disease: the multiplication phenomenon. Aline von Siebenthal,Virginie Descloux,Christel Borgognon,Tatiana Massardi &Serge Zumbach. The Neural Basis of Cognition, Apr 15 2021. https://doi.org/10.1080/13554794.2021.1905850

Rolf Degen's take: https://twitter.com/DegenRolf/status/1383091142959456258

ABSTRACT: Capgras syndrome (CS) is a delusional misidentification syndrome that is encountered in various pathologies. Here, we report the case of an 83-year-old woman affected by dementia with Lewy bodies who presented a CS during the disease. The neuropsychological assessment showed executive and face processing deficits. In this case, CS was characterized, in the beginning, by the duplication of a relative and then by its multiplication. To our knowledge, the description of the evolution of a CS in the course of a neurodegenerative disease is rare and we discuss this multiplication phenomenon in light of existing models of delusions.

KEYWORDS: Capgras syndromedelusional misidentificationmultiplication phenomenondementia with Lewy bodiesneurodegenerative disease


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