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The prevalence of this condition stands at about 24 to 30 cases per 100,000 people while 0.7 to 3.0 new cases per 100,000 people are reported every year. Delusional disorder accounts for 1–2% of admissions to inpatient mental health facilities. [7] [30] The incidence of first admissions for delusional disorder is lower, from 0.001 to 0.003%. [31]
The delusion can be found in various disorders, being more usual in psychotic disorders. Persecutory delusion is at the more severe end of the paranoia spectrum and can lead to multiple complications, from anxiety to suicidal ideation. Persecutory delusions have a high probability of being acted upon, for example not leaving the house due to ...
Delusional misidentification syndrome is an umbrella term, introduced by Christodoulou (in his book The Delusional Misidentification Syndromes, Karger, Basel, 1986) for a group of four delusional disorders that occur in the context of mental and neurological illness.
In psychiatry, delusions of reference form part of the diagnostic criteria for psychotic illnesses such as schizophrenia, [4] delusional disorder, and bipolar disorder with mania, as well as for the narcissistic and schizotypal types of personality disorder. [5]
Capgras delusion or Capgras syndrome is a psychiatric disorder in which a person holds a delusion that a friend, spouse, parent, other close family member, or pet has been replaced by an identical impostor. [a] It is named after Joseph Capgras (1873–1950), the French psychiatrist who first described the disorder.
A delusion [a] is a false fixed belief that is not amenable to change in light of conflicting evidence. [2] As a pathology, it is distinct from a belief based on false or incomplete information, confabulation, dogma, illusion, hallucination, or some other misleading effects of perception, as individuals with those beliefs are able to change or readjust their beliefs upon reviewing the evidence.
Shared delusional disorder; Somatoparaphrenia; Syndrome of subjective doubles; T. Thought broadcasting; Thought insertion; Thought withdrawal; Truman Show delusion
The first factor being the anomalous experience—often a neurological defect—which leads to the delusion, and the second factor being an impairment of the belief formation cognitive process. As an example of one of these first factors, several studies point toward Capgras delusion being the result of a disorder of the affect component of ...