placebo infusion, IV bottles marked the same as those used for ethanol infusion were utilized. BrAC testing and pump alterations mirrored procedures used during ethanol test days. After the 60 min. period during which steady state BrAC was maintained using the clamping procedure, ethanol infusion ended. BrAC readings and subjective response continued to be collected after the end of ethanol infusion at +110, +140, +170 and +230 minutes after target BrAC was achieved (see Figures 1 and 2).