Testing Alcohol as a Discriminative Stimulus For Gambling Behavior

In two training sessions, participants consumed alcohol or a control beverage and then played a pair of slot-machine simulations programmed to pay off differentially as a function of the beverage that had been consumed. During test sessions, participants again consumed either alcohol or a control beverage and were given concurrent access to the two slot-machine simulations (which were now programmed to pay off equally). Results did not indicate that alcohol (or the control beverage) controlled participants’ choice behavior between the two slot-machine simulations during testing despite the history of differential reinforcement. A number of procedural details likely contributed to this result and their implications for future research are discussed