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  2. Hallucinogen persisting perception disorder - Wikipedia

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

    Visual snow syndrome is defined as lacking any known cause and is specifically distinguished from HPPD in its nosology, yet further research may clarify the relationship. HPPD usually has a visual manifestation, but some hallucinogenic and psychiatric drugs affect the auditory sense and can produce tinnitus -like symptoms as a side effect, and ...

  3. Visual snow syndrome - Wikipedia

    en.wikipedia.org/wiki/Visual_snow_syndrome

    The cause of the syndrome is unclear. [3] The underlying mechanism is believed to involve excessive excitability of neurons in the right lingual gyrus and left anterior lobe of the cerebellum. Another hypothesis proposes that visual snow syndrome could be a type of thalamocortical dysrhythmia and may involve the thalamic reticular nucleus (TRN ...

  4. Photopsia - Wikipedia

    en.wikipedia.org/wiki/Photopsia

    sensory deprivation (ophthalmopathic hallucinations) age-related macular degeneration; vertebrobasilar insufficiency; optic neuritis; visual snow syndrome; Vitreous shrinkage or liquefaction, which is the most common cause of photopsia, causes a pull in vitreoretinal attachments, irritating the retina and

  5. Palinopsia - Wikipedia

    en.wikipedia.org/wiki/Palinopsia

    It is unclear if the symptoms' natural history and treatment are influenced by the cause. It is also not clear if there is treatment efficacy overlap for illusory palinopsia and the other co-existing diffuse persistent illusory phenomenon such as visual snow, oscillopsia, dysmetropsia, and halos. [2]

  6. Hallucinogen - Wikipedia

    en.wikipedia.org/wiki/Hallucinogen

    Hallucinogen is now, however, the most common designation in the scientific literature, although it is an inaccurate descriptor of the actual effects of these drugs. In the lay press, the term psychedelic is still the most popular and has held sway for nearly four decades.

  7. Tactile hallucination - Wikipedia

    en.wikipedia.org/wiki/Tactile_hallucination

    Tactile hallucinations are recurrent symptoms of neurological diseases such as schizophrenia, Parkinson's disease, Ekbom's syndrome and delirium tremens. Patients who experience phantom limb pains also experience a type of tactile hallucination. Tactile hallucinations are also caused by drugs such as cocaine and alcohol. [1]

  8. 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 ...

  9. Alcoholic hallucinosis - Wikipedia

    en.wikipedia.org/wiki/Alcoholic_hallucinosis

    It is also possible to treat withdrawal before major symptoms start to happen in the body. Diazepam and chlordiazepoxide have proven to be effective in treating alcohol withdrawal symptoms such as alcoholic hallucinosis. With the help of these specific medications, the process of withdrawal is easier to go through, making alcoholic hallucinosis ...