Inclusion Criteria:  consume 4/5 drinks per week fluent in English high school education right-handed regular menstrual cycles (women)  Exclusion Criteria:  serious medical problems body weight <110 or >210 lbs current medical or psychiatric conditions requiring medication for which alcohol is contraindicated substance use disorder other than alcohol current or recent history of inpatient/intensive treatment for addictive behaviors pregnant, nursing, on hormonal contraception contraindications for fMRI smoking > 5 cigarettes per day