Marijuana Flashback Phenomena

Marijuana's effects on human cognitive functions, psychomotor functions, and personality

Marijuana is complex chemically and not yet fully understood, but it is not a narcotic. Like alcohol, marijuana acts as both stimulant and depressant, but it lingers in body organs longer than alcohol. Smoking marijuana can injure mucosal tissue and may have more carcinogenic potential than tobacco. Research has indicated that marijuana intoxication definitely hinders attention, long-term memory storage, and psychomotor skills involved in driving a car or flying a plane. Expectations and past experience with marijuana have often influenced results more than pharmacological aspects have. Marijuana has triggered psychotic episodes in those more vulnerable. Psychological and some instances of physiological dependence on marijuana have been demonstrated. As a psychoactive drug, marijuana surely alters mental functioning. Although it is possible that chronic use of marijuana produces irreversible damage to mind or brain areas, this has not been determined by research.

Psychopathology of a drug experience

A young man aged 23 made contact and asked to talk about an adverse drug reaction. He had been puzzled and frightened by what had happened to him and although he was a very experienced drug-user he had not fully realized that a drug could cause such consequences—he had feared that he was going mad. He came along not as ‘a patient’ but because he believed that he had something to tell which might add to medical insights.