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Extensive scientific investigation on altered states of consciousness and their relationship to drug interactions with receptors in the brain have been performed. Particularly the study of the neurotransmitter serotonin and the effects of psychedelic drugs on the brain has been intensively researched over the past sixty years.
Substance intoxication is a transient condition of altered consciousness and behavior associated with recent use of a substance. [1] It is often maladaptive and impairing, but reversible. [2] If the symptoms are severe, the term "substance intoxication delirium" may be used. [3]
Entropic brain theory is a theory of consciousness proposed in 2014 by neuroscientist Robin Carhart-Harris and colleagues that was inspired by research on psychedelic drugs. [38] The theory suggests that the entropy of brain activity within certain limits indexes the richness of conscious states, particularly under the influence of psychedelics.
Hallucinogens are a large and diverse class of psychoactive drugs that can produce altered states of consciousness characterized by major alterations in thought, mood, and perception as well as other changes. [1] [2] Most hallucinogens can be categorized as either being psychedelics, dissociatives, or deliriants. [2]
A psychoactive drug, mind-altering drug, or consciousness-altering drug is a chemical substance that changes brain function and results in alterations in perception, mood, consciousness, cognition, or behavior. [1] The term psychotropic drug is often used interchangeably, while some sources present narrower definitions.
The psychedelic movement, he believes, is the vehicle for a "transformation in consciousness that humanity needs to make," one he compares to the "Copernican-Galileo revolution."
The altered state of consciousness produced by common or 'classical' deliriant substances such as scopolamine, atropine and diphenhydramine is mediated through the drug compounds' competitive antagonism of the peripheral and central muscarinic acetylcholine receptors, especially the M 1 muscarinic receptor.
Omar Mateen drastically altered his appearance, shaving his head and face, the morning before the massacre. Mateen altered looks, researched anti-psychotic drugs before attack: Acquaintance Skip ...