Second Young Adult Naturalistic Alcohol Study (YANAS-2)

Inclusion Criteria:

• Be between the ages of 21-25.
• Be able to read English and complete study evaluations.
• Drink alcohol on a regular basis

Exclusion Criteria:

No participant may:

• Be seeking treatment for alcohol or other addictive behaviors or have been in inpatient or intensive outpatient treatment within the past 12 months.
• Provide two positive breath alcohol concentration (BAC) readings (i.e., > 0.00%) at any of the following times: in-person screening, a pre-session screening, or at the outset of an alcohol self-administration session. After participants blow their first positive BAC, they will be allowed to reschedule and participate at another time, however if they blow a second positive BAC, they will be excluded from this study and offered referrals for alcohol treatment.
• Have positive urine screen results at the in-person screening or pre-session screening on the day of an alcohol self-administration session for opiates, cocaine, phencyclidine, amphetamines, methamphetamine, barbiturates, methadone or benzodiazepines.
• A woman who is pregnant, nursing, or refuses to use a reliable method of birth control.
• Fail to perform at a normative level at screening on any of the four cognitive and psychomotor tasks administered in this study. Participants must perform within two standard deviations of the mean from the samples in relevant prior studies
• Perform computer tasks initially administered at baseline in either a random or inordinately slow fashion
• A body mass index lower than 18.5 or greater than 35.