Fig 6. Latency to the Tq during the probe trial.

Each bar represents the mean ± SEM of the transfer latency to the Tq in rats (n = 6 in each group) that received T80W, KESA (100 mg/kg, 200 mg/kg, 300 mg/kg), KESC (300 mg/kg) and KHJ 2.5 mL/kg. ***P < 0.001, **P < 0.01 and *P < 0.05 when each group of rats was compared with rats that received T80W. KESC: khat extract subchronic, KESA: khat extract subacute, KHJ: khat juice.