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Delusional misidentification syndromes (DMS) are rare neuropsychiatric syndromes. Most of the available data on DMS is from the developed countries. The present retrospective analysis was conducted on patients utilizing the psychiatry services in a North Indian tertiary care hospital.

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Towards a unified, yet pluralistic, account of Capgras' delusion.

Cogn Neuropsychiatry

January 2025

Department of Sociology, Philosophy and Anthropology, University of Exeter, Exeter, UK.

Introduction: In this paper, we present a new way of thinking about what is going on in cases of Capgras delusion which is a more varied presentation than represented in the literature. We do this by reflecting on the fundamental nature of identification, and then draw some lessons from this for understanding misidentification in general and Capgras delusion cases in particular. What emerges, through the conceptual tool of "mental files", is a unified, yet pluralistic, account of delusional misidentification of the Capgras type.

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Article Synopsis
  • * It may arise from disruptions in the brain's frontal, limbic, and temporal areas that affect face recognition and emotional responses, with risk factors including neurological disorders and schizophrenia.
  • * A case of a 39-year-old male with a traumatic brain injury and a family history of schizophrenia is presented, who experienced paranoia and delusions about his father being an imposter; he was treated with olanzapine and stabilized before discharge.
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Background: Delusional ideations, one of neuropsychiatric symptoms (NPSs), are frequently shown in the long-term progression of Alzheimer's disease (AD), and comorbid with other NPSs including depression or agitation. Despite various types of delusional ideations, the comorbidity between each delusional ideation and depressive symptoms has not been discussed.

Objective: The present cross-sectional study is aimed at testing the hypothetical mechanism of comorbid pattern in AD.

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