Sixty-seven healthy adults (34 women), all white/non-Hispanic and between the ages of 21 and 35 years (M = 25.6 years), were recruited from the Columbia, MO community using mass email announcements and advertisements in local periodicals. Eligibility was determined using a structured telephone interview. Individuals who indicated any condition that would contraindicate alcohol administration (pregnancy; abstention; symptoms of alcohol or drug dependence; history of serious mental or physical illness; prescription medication other than oral contraception) or who reported history of head trauma or neurological disorder were excluded from the sample, as were individuals who reported drinking less than an average of two or more than an average of 25 drinks per week in the past three months. Eligible participants were scheduled for individual lab appointments and instructed to abstain from alcohol and drugs for 24 hours prior and to eat a light meal 4–6 hours before their appointment. All lab sessions began between 12:00 p.m. and 4:00 p.m. Affidavits completed upon participants’ arrival at the lab were used to ensure compliance with presession protocols and maintenance of study eligibility since the interview. Participants were compensated $12 per hour for their time.
