Figure 5.

Hypothetical discounting data showing how a potential pharmacotherapy (dashed line) for impulse-control disorders can increase responding for a large, delayed reinforcer across multiple delays but can decrease responding for the large reinforcer when its delivery is immediate relative to vehicle (solid line). At first glance, these data seem to support the idea that the drug is a potential treatment for disorders characterized by increased delay sensitivity. However, because the drug also decreases responses for the large alternative at the 0-s delay (decrease in A parameter), the drug may be causing a general disruption in task performance. The curves were generated using GraphPad Prism (version 5.0).