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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. [2][3] Despite being ...
No clear connection has been made between psychedelic drugs and organic brain damage. However, hallucinogen persisting perception disorder (HPPD) is a diagnosed condition wherein certain visual effects of drugs persist for a long time, sometimes permanently, [61] although the underlying cause and pathology remains unclear. [62]
LSD. Lysergic acid diethylamide, commonly known as LSD (from German Lysergsäure-diethylamid), is a potent psychedelic drug that intensifies thoughts, emotions, and sensory perception. [12] Often referred to as acid or lucy, LSD can cause mystical, spiritual, or religious experiences. [13][14] At higher doses, it primarily induces visual and ...
Psychedelic therapy (or psychedelic-assisted therapy) refers to the proposed use of psychedelic drugs, such as psilocybin, MDMA, [note 1] LSD, and ayahuasca, to treat mental disorders. [2][3] As of 2021, psychedelic drugs are controlled substances in most countries and psychedelic therapy is not legally available outside clinical trials, with ...
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Stimulant psychosis is a mental disorder characterized by psychotic symptoms (such as hallucinations, paranoid ideation, delusions, disorganized thinking, grossly disorganized behaviour). It involves and typically occurs following an overdose or several day binge on psychostimulants, [1] though one study reported occurrences at regularly ...
Hallucinogen persisting perception disorder (HPPD) is characterized by a continual presence of visual disturbances similar to those generated by psychedelic substances. Neither flashbacks nor HPPD are commonly associated with psilocybin usage, [ 46 ] and correlations between HPPD and psychedelics are further obscured by polydrug use and other ...
A hallucination is a perception in the absence of an external stimulus that has the compelling sense of reality. [4] Hallucination is a combination of two conscious states of brain: wakefulness and REM sleep. [5] They are distinguishable from several related phenomena, such as dreaming (REM sleep), which does not involve wakefulness ...