Subjects will participate in a 4-visit study protocol in which they will be asked to complete
a set of computerized tasks and a 45-minute simulated drive in a driving simulator. Subjects
will be administered marijuana of varying pre-determined concentrations of
delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) during 3 of the visits and alcohol
during one of the visits. Throughout the duration of each visit, brain activity will be
measured noninvasively using an electroencephalogram (EEG) headset.
The purpose of this study is to:
1. Further understand the effects of acute cannabis intoxication on driving performance in
a driving simulator
2. Develop and refine brain-based biomarkers of impairment due to acute cannabis
intoxication