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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.
Delusions can be bizarre or non-bizarre in content; [7] non-bizarre delusions are fixed false beliefs that involve situations that could occur in real life, such as being harmed or poisoned. [8] Apart from their delusion or delusions, people with delusional disorder may continue to socialize and function in a normal manner and their behavior ...
.20 With delusions (DSM-IV only).21 With depressed mood (DSM-IV only) 290.xx Vascular dementia.40 Uncomplicated.41 With delirium.42 With delusions.43 With depressed mood; 294.1x Dementia due to HIV disease (coded 294.9 in the DSM-IV) 294.1x Dementia due to head trauma (coded 294.1 in the DSM-IV)
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.
A thought disorder (TD) is a disturbance in cognition which affects language, thought and communication. [1] [2] Psychiatric and psychological glossaries in 2015 and 2017 identified thought disorders as encompassing poverty of ideas, neologisms, paralogia (a reasoning disorder characterized by expression of illogical or delusional thoughts), word salad, and delusions—all disturbances of ...
The term was used to describe a mental illness in which a delusional belief is the sole or most prominent feature. In this definition, the belief does not have to be persecutory to be classified as paranoid, so any number of delusional beliefs can be classified as paranoia. [30]
Among these books are: the Publication Manual of the American Psychological Association (and a concise version titled Concise Rules of APA Style), which is the official guide to APA style; [18] [19] the APA Dictionary of Psychology; [20] an eight-volume Encyclopedia of Psychology; [21] and many scholarly books on specific subjects such as ...
A major mood episode is required for schizoaffective disorder (for a majority of the disorder's duration after criterion A [related to delusions, hallucinations, disorganized speech or behavior, and negative symptoms such as avolition] is met). [11] Criteria for delusional disorder changed, and it is no longer separate from shared delusional ...