Cannabis and Cognition

Cannabis intoxication acutely impairs concentration, attention, working memory, and increases impulsivity. In adults, most cognitive effects resolve with abstinence, though heavy users may experience lasting impulsivity and decision-making deficits. Adolescents are more vulnerable to cannabis-related cognitive problems, and the authors advise avoiding cannabis use in younger people.

Study at a glance

Abstract

Cannabis can be associated with acute cognitive changes. Acute cannabis intoxication results in impaired concentration, impaired attention, impulsivity, and decreases in working memory. In adults, most of the effects wear off with abstinence. Impulsivity and long-term impairment in decision making is seen in heavy cannabis users. In adolescents, cannabis use is more closely associated with cognitive problems. Cannabis use should be avoided in younger people.