Motivational factors associated with the use of cannabis (marihuana).
D000328:Adult; D001007:Anxiety; D001309:Auditory Threshold; D002188:Cannabis / Q000494:pharmacology; D004597:Electroshock; D005712:Galvanic Skin Response; D006801:Humans; D008297:Male; D009042:Motivation; D010991:Plethysmography; D012054:Reinforcement, Psychology