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Medication. Antipsychotics. Capgras delusion or Capgras syndrome is a psychiatric disorder in which a person holds a delusion that a friend, spouse, parent, another close family member, or pet has been replaced by an identical impostor.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 hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. [4] Hallucination is a combination of two conscious states of brain: wakefulness and REM sleep. [5] They are distinguishable from several related phenomena, such as dreaming (REM sleep), which does not involve wakefulness ...
Delusional disorder, traditionally synonymous with paranoia, is a mental illness in which a person has delusions, but with no accompanying prominent hallucinations, thought disorder, mood disorder, or significant flattening of affect. [6][7] Delusions are a specific symptom of psychosis. Delusions can be bizarre or non-bizarre in content; [7 ...
UK: / ˌfɒli æ ˈdɜː, - i ɑː -/, US: / foʊˌliː ə ˈdʌ /, [1] French: [fɔli a dø] Specialty. Psychiatry. Folie à deux (French for 'madness of two'), also known as shared psychosis[2] or shared delusional disorder (SDD), is a psychiatric syndrome in which symptoms of a delusional belief [3] are "transmitted" from one individual to ...
Ideas and delusions of reference. Ideas of reference and delusions of reference describe the phenomenon of an individual experiencing innocuous events or mere coincidences [1] and believing they have strong personal significance. [2] It is "the notion that everything one perceives in the world relates to one's own destiny", usually in a ...
Fregoli delusion. The Fregoli delusion (or Fregoli syndrome) is a rare disorder in which a person holds a delusional belief that different people are in fact a single person who changes appearance or is in disguise. [1] The syndrome may be related to a brain lesion [2][3] and is often of a paranoid nature, with the delusional person believing ...
The term illusion refers to a specific form of sensory distortion. Unlike a hallucination, which is a distortion in the absence of a stimulus, an illusion describes a misinterpretation of a true sensation. For example, hearing voices regardless of the environment would be a hallucination, whereas hearing voices in the sound of running water (or ...
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.