Smoked Cannabis' Psychomotor and Neurocognitive Effects in Occasional and Frequent Smokers
Journal of Analytical Toxicology March 4, 2015 Nathalie A. Desrosiers, Johannes G. Ramaekers, Émeline Chauchard et al. 136 citations
THC, the main psychoactive compound in cannabis, impairs psychomotor performance, cognition, and driving ability. Occasional cannabis smokers showed significantly more difficulty compensating for tracking error and greater decline in divided attention performance than frequent smokers after smoking one 6.8% THC cigarette. No differences between groups were found on working memory or risk-taking tasks. The results suggest that frequent users develop some tolerance to psychomotor impairment, with implications for driving under the influence cases.