in a caffeine-free and sugar-free soda. The placebo beverage was made using the same mixer with 3 ml of 95% ethanol floated on top. Subjects were instructed to drink at a steady pace and to consume the beverage over 7 min. ERPs were collected at 60 min after beverage intake. Subjective ratings of alcohol’s effects were determined using the Subjective High Assessment Scale (SHAS, see Schuckit, 1984) and blood samples for subsequent determination of blood ethanol concentrations (BECs) were also collected at 60 minutes following the beverage as described previously (Ehlers et al., 1998a).
