In a model to assess stimulant response across timepoints following the end of clamped ethanol infusion (+110 through +230), the dose by impulsivity interaction was significant (num df = 1.55, ATS = 6.39, p = 0.004), but the three-way interaction was not (num df = 4.14, ATS = 1.02, p = 0.396). The significant two-way interaction was due to low impulsive participants reporting somewhat stronger stimulation than high impulsive participants with the placebo and low dose while there were no significant differences by impulsivity level with the high dose during these later time points.
