Figure 3.

Effect of a history of cocaine on delay discounting and DA release dynamics. A, Animals with a history of cocaine or saline self-administration did not differ in their percentage choice of the large, delayed reward during the delay discounting task (average of the last 5 d). Inset, Water/saline and cocaine rats earned similar numbers of reinforcers across the 14 self-administration sessions. B, Differences in peak cue DA for each magnitude and delay across groups. There were no differences in peak cue DA between animals with a history of water/saline or cocaine self-administration. C, There were no differences in cumulative DA during cues between animals with a history of water/saline or cocaine self-administration.