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  2. Visual hallucination - Wikipedia

    en.wikipedia.org/wiki/Visual_hallucination

    Studies show that visual hallucinations are present in 16%–72% of patients with schizophrenia and schizoaffective disorder. [5] [22] [16] [14] In delirium, visual hallucinations have been observed in 27% of patients. [14] [13] Furthermore, visual hallucinations are reported in over 20% of individuals with dementia with Lewy bodies. [14] [23]

  3. Alcoholic hallucinosis - Wikipedia

    en.wikipedia.org/wiki/Alcoholic_hallucinosis

    Alcoholic hallucinosis develops about 12 to 24 hours after the heavy drinking stops suddenly, and can last for days. It involves auditory and visual hallucinations, most commonly accusatory or threatening voices. [4] The risk of developing alcoholic hallucinosis is increased by long-term heavy alcohol abuse and the use of other drugs. [5]

  4. Peduncular hallucinosis - Wikipedia

    en.wikipedia.org/wiki/Peduncular_hallucinosis

    Peduncular hallucinosis (PH) is a rare neurological phenomenon that causes vivid visual hallucinations that typically occur in dark environments and last for several minutes. Unlike some other kinds of hallucinations, the hallucinations that patients with PH experience are very realistic, and often involve people and environments that are ...

  5. Visual release hallucinations - Wikipedia

    en.wikipedia.org/wiki/Visual_release_hallucinations

    Simple visual hallucinations are commonly characterized by shapes, photopsias, and grid-like patterns. [6] Complex visual hallucinations consist of highly detailed representations of people and objects. [6] The most common hallucination is of faces or cartoons. [7]

  6. Hallucination - Wikipedia

    en.wikipedia.org/wiki/Hallucination

    A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. [6] They are distinguishable from several related phenomena, such as dreaming (), which does not involve wakefulness; pseudohallucination, which does not mimic real perception, and is accurately perceived as unreal; illusion, which involves distorted or misinterpreted real ...

  7. Prosopometamorphopsia - Wikipedia

    en.wikipedia.org/wiki/Prosopometamorphopsia

    Prosopometamorphopsia is considered a face hallucination and is included under the umbrella of complex visual hallucinations. [7] Unlike other forms of hallucinations such as peduncular hallucinosis or Charles Bonnet syndrome, prosopometamorphopsia does not predominate at a particular time of day; it is a constant experience. [7]

  8. Positive visual phenomena - Wikipedia

    en.wikipedia.org/wiki/Positive_visual_phenomena

    Panayiotopoulos, C P. Elementary visual hallucinations in migraine and epilepsy. Journal of Neurology, Neurosurgery, and Psychiatry 1994;57:1371-1374. Weller, Michael and Peter Wiedemann. Visual Hallucinations: An outline of etiological and pathogenetic concepts. International Ophthalmology 13:193-199,1989.

  9. Hallucinogen persisting perception disorder - Wikipedia

    en.wikipedia.org/wiki/Hallucinogen_persisting...

    Hallucinogen persisting perception disorder (HPPD) is a non-psychotic disorder in which a person experiences apparent lasting or persistent visual hallucinations or perceptual distortions after using drugs, [1] including but not limited to psychedelics, dissociatives, entactogens, tetrahydrocannabinol (THC), and SSRIs.