PRIMARY STUDY

Characterizing psychosis-relevant phenomena and cognitive function in a unique population with isolated, chronic and very heavy cannabis exposure

Key Findings:  Results of this study, examining the effects of chronic, heavy, and early cannabis use (not confounded by other drug use), concluded that it was associated with psychosis-relevant phenomena and cognitive deficits such as poorer cognitive performance (i.e. tests of attention, psychomotor speed, working memory, cognitive flexibility, visuo-spatial processing, and verbal memory).