Effects of RX821002 on the performance of 5-CSRTT. The graphs showed the effects of different dosage of RX821002 (0, 0.05 and 0.1 mg/kg) on the performance of 5-CSRTT (N = 12) in the aspects of correct response rate (A), premature response (B), omission rate (C), correct latency (D) and magazine latency (E). Open bars depicted saline vehicle controls, oblique lattice bars depicted RX821002 at 0.05 mg/kg, and black bars depicted RX821002 at 0.1 mg/kg. Values are presented as mean+SEM. * P < 0.05.