Effect of Cannabis on Simulated and Actual Driving in Healthy Subjects

• To compare performance data driving with the data self-assessed on the ability to drive, and the level of sleepiness and fatigue
• To measure the effects of distractive task on driving performance, consisting of a conversation with co-driver of the real or simulated vehicle (a series of difficult questions involving reflection)
• To validate the (known) effects of cannabis
• To adapt equipment and standardize methods for the pharmacological studies evaluating other types of substances having an impact on driving (antihistamines, antidepressants, antiparkinsonian ...) and other populations of subjects (men versus women, young versus elderly, healthy versus sick ...)
• To compare data obtained under conditions of simulated driving and actual driving situation, under identical experimental conditions (volunteers, narcotic substance, experimental) and measure the degree of ecological validity of the simulation of driving

Inclusion criteria

• Weight +/- 10% of ideal weight
• Tobacco smoker moderate
• Having already smoked of the cannabis (less 1 time per month)
• Not consuming in a way exaggerated by some coffee, tea or cola
• Not having acute or chronic pathologies
• Normal electrocardiogram
• Not taking a drug interfering with the study
• Not presenting disorder of sleeping
• Having a driving license for at least 3 years and driving more 3000 km per year
• Normal acuteness or corrected visual acuteness and normal vision of colors
• Reachable and available during the study
• No nausea or vomit during using of a driving simulator
• Having a national insurance scheme
• Volunteer

Exclusion criteria

• Women
• Weight deviating of 10% of ideal weight
• Consuming moreover 5 cup of caffeine drinks
• Drinking alcohol regularly
• Acute or chronic pathologies interfering with the study
• Abnormal electrocardiogram
• Asthmatic
• Dependence present or spent in a psychotropic substance
• Presenting an anxious or depressive syndrome
• Circadian typology (Horne et Ostberg)
• Positive control in the cannabis in urines the day of the balance assessment of inclusion
• Positive control in alcohol the day of the balance assessment of inclusion
• Participating in another clinical study
• Having collected an upper total amount of compensations allowances
• Deprived of freedom further to a court or administrative order
• Risk of not observance
• Duration average of sleep of 3 nights previous every session lower than 80 % of the average duration of sleep which the volunteer thinks of needing to be in shape