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LSD, mescaline, psilocybin, and PCP are drugs that cause hallucinations, which can alter a person's perception of reality. LSD, mescaline, and psilocybin cause their effects by initially disrupting the interaction of nerve cells and the neurotransmitter serotonin. [67]
[76] [77] They are thought to mediate their hallucinogenic effects specifically by activation of serotonin 5-HT 2A receptors. [78] [79] Psychedelics, such as the tryptamines psilocin, DMT, and 5-MeO-DMT, the phenethylamines mescaline, DOM, and 2C-B, and ergolines and lysergamides like LSD, all act as agonists of the serotonin 5-HT 2A receptors.
The following is a list of psychedelic drugs of various chemical classes, including both naturally occurring and synthetic compounds. Serotonergic psychedelics are usually considered the "classical" psychedelics [dubious – discuss], whereas the other classes are often seen as having only secondary psychedelic properties; nonetheless all of the compounds listed here are considered ...
Salvia divinorum, a dissociative hallucinogenic sage. This is a list of plant species that, when consumed by humans, are known or suspected to produce psychoactive effects: changes in nervous system function that alter perception, mood, consciousness, cognition or behavior.
Many psychoactive substances are used for their mood and perception altering effects, including those with accepted uses in medicine and psychiatry. Examples of psychoactive substances include caffeine , alcohol , cocaine , LSD , nicotine , cannabis , and dextromethorphan . [ 46 ]
In the 1990s, hallucinogens and their effects on human consciousness were again the subject of scientific study, particularly in Europe. Advances in neuropharmacology and neuropsychology and the availability of brain imaging techniques have provided impetus for using drugs like psilocybin to probe the "neural underpinnings of psychotic symptom ...
Last year, more middle-aged adults were binge drinking, using marijuana or consuming hallucinogens than ever before, according to a new report. Cannabis use surged among young adults under 30 ...
The toxic berry of Atropa belladonna which contains the tropane deliriants scopolamine, atropine, and hyoscyamine.. Deliriants are a subclass of hallucinogen.The term was coined in the early 1980s to distinguish these drugs from psychedelics such as LSD and dissociatives such as ketamine, due to their primary effect of causing delirium, as opposed to the more lucid (i.e. rational thought is ...