Participants completed two 4 - 5 hour randomized sessions in which they received a beverage containing either a placebo (1% alcohol as taste mask) or a high alcohol dose (0.8 g/kg). Sessions took place between 3:00-5:00 PM and were separated by at least 48 hours. Participants were instructed to abstain from alcohol and other drugs (including over the counter medication) for 48 hours and food and cigarettes for 3 hours prior to the experiment. Upon arrival, participants completed a questionnaire of last substance use, and a breathalyzer test (Intoximeters, St. Louis, Missouri, Alco-sensor IV) and a urine test to verify non-pregnancy. Following this, participants consumed a light snack at 20% of daily kilocalorie needs, with 55% of kilocalories from carbohydrates, 10% from protein, and 35% from fat.
