Delusion
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Featured:  Illustration: Portrait fantaisiste du marquis de Sade (1866) by H. Biberstein |
A delusion is commonly defined as a fixed false belief and is used in everyday language to describe a belief that is either false, fanciful or derived from deception. In psychiatry, the definition is necessarily more precise and implies that the belief of a pathological liar (the result of an illness or illness process).
Delusions typically occur in the context of neurological or mental illness, although they are not tied to any particular disease and have been found to occur in the context of many pathological states (both physical and mental). However, they are of particular diagnostic importance in psychotic disorders and particularly in schizophrenia.
See also
- Body dysmorphic disorder
- Delirium
- Delusions of reference
- Capgras delusion
- Clinical lycanthropy
- Cotard delusion
- Delusional misidentification syndrome
- Delusional parasitosis
- Folie à deux
- Fregoli delusion
- Intrusive thoughts
- Jerusalem syndrome
- Reduplicative paramnesia
- Monothematic delusions
- Paranoia
- Paranoia Network
- Trauma model of mental disorders
