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A delusion [a] is a 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.
Delusions also occur as symptoms of many other mental disorders, especially the other psychotic disorders. The DSM-IV and psychologists agree that personal beliefs should be evaluated with great respect to cultural and religious differences, as some cultures have normalized beliefs that may be considered delusional in other cultures.
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 ...
Delusions of grandeur, also known as grandiose delusions (GDs) or expansive delusions, [1] are a subtype of delusion characterized by the extraordinary belief that one is famous, omnipotent, wealthy, or otherwise very powerful or of a high status. Grandiose delusions often have a religious, science fictional, or supernatural theme
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 negative and hostile manner.
Auditory hallucinations have two essential components: audibility and alienation. [7] This differentiates it from thought insertion. While auditory hallucination does share the experience of alienation (patients cannot recognize that the thoughts they are having are self-generated), thought insertion lacks the audibility component (experiencing the thoughts as occurring outside of their mind ...
Psychiatry, clinical psychology: Symptoms: Delusions, hallucinations, incoherent speech and behavior [1] ... A delusion is a fixed, false idiosyncratic belief, which ...
In rare instances, it can include delusions of immortality. [9] Syndrome of delusional companions is the belief that objects (such as soft toys) are sentient beings. [10] Clonal pluralization of the self, where a person believes there are multiple copies of themselves, identical both physically and psychologically, but physically separate and ...