Comparative effects of alcohol and marijuana on mood, memory, and performance.
Pharmacology, Biochemistry and Behavior September 1, 1997 S. Heishman, K. Arasteh, M. Stitzer
Alcohol and marijuana produced similar dose-related changes in subjective drug effects and comparable impairment on digit-symbol substitution and word recall tests, but neither affected time perception or reaction time. Alcohol slightly impaired performance on a number recognition test, while marijuana did not. Ratings of perceived impairment were identical for the high doses of both drugs. The study used controlled puffing and inhalation technology to deliver alcohol (0.25, 0.5, or 1.0 g/kg) and marijuana (4, 8, or 16 puffs of 3.55% THC) to five male volunteers with moderate drug use histories.