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  2. Peduncular hallucinosis - Wikipedia

    en.wikipedia.org/wiki/Peduncular_hallucinosis

    Peduncular hallucinosis (PH) is a rare neurological disorder 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 familiar to the affected individua

  3. Visual release hallucinations - Wikipedia

    en.wikipedia.org/wiki/Visual_release_hallucinations

    Those affected understand that the hallucinations are not real, and the hallucinations are only visual. [8] [9] Visual hallucinations generally appear when the eyes are open, fading once the visual gaze shifts. [4] It is widely claimed that sensory deprivation is instrumental in the progression of CBS. [10]

  4. Hypnopompia - Wikipedia

    en.wikipedia.org/wiki/Hypnopompia

    Hypnopompia (also known as hypnopompic state) is the state of consciousness leading out of sleep, a term coined by the psychical researcher Frederic Myers.Its mirror is the hypnagogic state at sleep onset; though often conflated, the two states are not identical and have a different phenomenological character.

  5. Cyanopsia - Wikipedia

    en.wikipedia.org/wiki/Cyanopsia

    The primary causes include post-cataract surgery, certain medications, and, less commonly, neurological or ophthalmological conditions. Post-cataract surgery is a common cause, as replacing the natural lens with a synthetic one increases exposure to blue light, leading to temporary blue-tinted vision. This effect usually resolves as the eye adapts.

  6. Visual hallucination - Wikipedia

    en.wikipedia.org/wiki/Visual_hallucination

    Visual hallucinations may be simple/non-formed visual hallucinations, or complex/formed visual hallucinations. [15] Simple visual hallucinations without structure are known as phosphenes and those with geometric structure are known as photopsias. [16] These hallucinations are caused by irritation to the primary visual cortex (Brodmann's area 17 ...

  7. Delusional misidentification syndrome - Wikipedia

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

    Mirrored-self misidentification is the belief that one's reflection in a mirror is some other person. Reduplicative paramnesia is the belief that a familiar person, place, object, or body part has been duplicated. For example, a person may believe that they are in fact not in the hospital to which they were admitted, but an identical-looking ...