Figure 4

Mean latencies for ‘chase’ responses made by 18 rats while performing the loss-chasing task following three drug treatments: the 5-HT1A agonist 8-OH-DPAT (saline, 0.1, 0.3, and 0.6 mg/kg), the D2 receptor antagonist eticlopride (saline, 0.01, 0.03, and 0.06 mg/kg), and the D1 receptor antagonist SCH23390 (saline, 0.001, 0.003, and 0.01 mg/kg).