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Mirrored-self misidentification is the delusional belief that one's reflection in the mirror is another person – typically a younger or second version of one's self, a stranger, or a relative. [1] This delusion occurs most frequently in patients with dementia [ 2 ] and an affected patient maintains the ability to recognize others' reflections ...
Clonal pluralization of the self, where a person believes there are multiple copies of themselves, identical both physically and psychologically, but physically separate and distinct. [11] Clinical lycanthropy is the belief that one is turning or has turned into an animal. It is considered a delusional misidentification of the self. [12]
Little detail is known about the specific causes of delusional companion syndrome. It is thought that damage to the neocortex may be the direct cause of this psychosis. . Shanks and Venneri (2002) found unique and abnormal blood flow centred in the right parietal lobe of three patients with Alzheimer's dis
The Capgras delusion is classified as a delusional misidentification syndrome, a class of beliefs that involves the misidentification of people, places, or objects. [2] It can occur in acute, transient, or chronic forms. Cases in which patients hold the belief that time has been "warped" or "substituted" have also been reported. [3]
The term reduplicative paramnesia was first used in 1903 by psychiatrist Arnold Pick to describe a condition in a patient with suspected Alzheimer's disease who insisted that she had been moved from Pick's city clinic to one she claimed looked identical but was in a familiar suburb. To explain the discrepancy she further claimed that Pick and ...
This is an accepted version of this page This is the latest accepted revision, reviewed on 2 March 2025. Long-term brain disorders causing impaired memory, thinking and behavior This article is about the cognitive disorder. For other uses, see Dementia (disambiguation). "Senile" and "Demented" redirect here. For other uses, see Senile (disambiguation) and Demented (disambiguation). Medical ...
[9] [20] A patient can simultaneously suffer from Fregoli delusion for both persons and environments. In some cases, the patient holds the belief that they exist in both the correct and an incorrect location, a delusion that has been termed reduplicative paramnesia; the latter being a variant of the delusional misidentification syndromes. [9]
There is an association in the literature between misidentification syndromes and violent or aggressive behavior. [3] [5] [6] [7] In several case studies, individuals with misidentification syndromes acted aggressively towards the object of misidentification, which has the potential for criminal behavior.