Impulsivity Domains and Subjective Response

Inclusion Criteria:

* 21-25 years old
* Report drinking to an estimated BAC \> .08% at least once in the past 30 days based on responses on the Timeline Followback (TLFB)
* Report drinking at least twice weekly in the past 30 days based on responses on the TLFB
* Fluency in English

Exclusion Criteria:

* Any serious medical problems (e.g., liver disease, cardiac abnormality, pancreatitis, diabetes, neurological problems, and gastrointestinal disorders)
* Body weight \< 110 or \> 210 pounds
* Axis I psychiatric disorders including substance use disorder other than mild or moderate alcohol or mild cannabis use disorder
* Current alcohol withdrawal or history of medically-assisted detoxification
* Two positive breath alcohol concentration (BrAC) readings (i.e., \> 0.00%) at an in-person screening appointment or experimental session
* Positive urine screen for illegal drugs other than cannabis
* Currently seeking or past-12-month history of inpatient or intensive treatment for addictive behaviors
* Current psychotropic medication use or receipt of a prescription for these medications in the past 30 days
* Psychosis or other psychiatric disability
* Pregnancy, nursing or lack of reliable birth control use for women
* Report smoking \> 5 cigarettes per day (to avoid acute nicotine effects or withdrawal during experimental sessions)