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How Marijuana Affects the Way the Brain Processes Emotional Information

Apr. 11, 2011 — Drugs like marijuana act on naturally occurring receptors in the brain called cannabinoid receptors. However, the mechanisms by which these drugs produce their sensory and mood altering effects within the brain are largely unknown. Research led by Steven Laviolette at The University of Western Ontario has now identified a critical brain pathway responsible for the effects of cannabinoid drugs on how the brain processes emotional information.

http://www.sciencedaily.com/releases/2011/04/110405174833.htm