The reinforcing properties of delta 9THC (17.5 mg), a 1 g marijuana cigarette containing 1.83% delta 9-THC, a synthetic cannabis compound (Nabilone 2 mg orally), and their respective placebos were assessed with self-report and operant work-contingent choice procedures. Three groups of eight subjects were selected on the basis of a history of regular, intermittent, or occasional...
The effects of marijuana cigarette (1.8% THC) smoking on pulse rate and mood were studied under double-blind placebo-controlled conditions in 28 adult female volunteers during the follicular, luteal, and ovulatory phases of the menstrual cycle. Statistically significant increases in pulse rate, subjective levels of intoxication, and the POMS confusion factor occurred after marijuana smoking....
Adult male volunteers with a prior history of either moderate (N = 12) or heavy (N = 14) marijuana use were systematically observed before, during, and after a 21-day period of free access to marijuana cigarettes. Data relevant to social interaction and recreational preferences were collected at hourly intervals. Moderate users consumed an average of 2.6 cigarettes per day and showed both acute...