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  2. Delusion - Wikipedia

    en.wikipedia.org/wiki/Delusion

    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.

  3. Delusional disorder - Wikipedia

    en.wikipedia.org/wiki/Delusional_disorder

    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 ...

  4. Delusional misidentification syndrome - Wikipedia

    en.wikipedia.org/wiki/Delusional...

    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.

  5. Ideas and delusions of reference - Wikipedia

    en.wikipedia.org/wiki/Ideas_and_delusions_of...

    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.

  6. Thought disorder - Wikipedia

    en.wikipedia.org/wiki/Thought_disorder

    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 ...

  7. Psychosis - Wikipedia

    en.wikipedia.org/wiki/Psychosis

    The two-factor model of delusions posits that dysfunction in both belief formation systems and belief evaluation systems are necessary for delusions. Dysfunction in evaluations systems localized to the right lateral prefrontal cortex, regardless of delusion content, is supported by neuroimaging studies and is congruent with its role in conflict ...

  8. Thought withdrawal - Wikipedia

    en.wikipedia.org/wiki/Thought_withdrawal

    In psychiatry, thought withdrawal is the delusional belief that thoughts have been 'taken out' of the patient's mind, and the patient has no power over this. [1] It often accompanies thought blocking.

  9. Extreme Overvalued Beliefs - Wikipedia

    en.wikipedia.org/wiki/Extreme_Overvalued_Beliefs

    Notably, both delusions and obsessions are different from extreme overvalued beliefs. While extreme overvalued beliefs are shared by individuals of the same culture and/or subculture, [1] this is not true of delusions. A delusion is an inherently false belief that is not shared by anyone else, while an extreme overvalued belief is shared by ...