出典:Wiktionary
dissociate + -ive
dissociative
出典:Wikipedia
出典:『Wikipedia』 (2011/08/01 23:36 UTC 版)
Dissociatives are a class of psychoactive drugs which are said to reduce or block signals to the conscious mind from other parts of the brain. Although many kinds of drugs are capable of such action, dissociatives are unique in that they do so in such a way that they produce hallucinogenic effects, which may include sensory deprivation, dissociation, hallucinations, and dream-like states or trances. Some, which are nonselective in action and affect the dopamine and/or opioid systems, may be capable of inducing euphoria. Many dissociatives have general depressant effects and can produce sedation, respiratory depression, analgesia, anesthesia, and ataxia, as well as cognitive and memory impairment and amnesia.