Participants documented their current subjective perceptions over approximately 20 s at the end of each epoch, using a visual comparison to their preceding selection (Figure 1), consistent with our prior work. 25 , 50 , 51 The following subjective response questions were used, adapted from the Subjective High Assessment Scale 52 as implemented by Schuckit et al., 15 , 53 , 54 , 55 the Brief Biphasic Alcohol Effects Scale, 56 and the Subjective Effects of Alcohol Scale. 57 ○How much am I feeling the effects of the drug right now? (INTOXICATED).○How STIMULATED (energized, excited, up) do I feel right now?○How ANXIOUS (tense, jittery, nervous) do I feel right now?○How RELAXED (carefree, mellow, loose) do I feel right now?○How SEDATED (slow thoughts, sluggish, difficulty concentrating) do I feel right now?
