Effect of MMC, (g/kg, p.o) on cage climbing behaviour and climbing time induced by apomorphine in mice. (a) Each point represents the mean ± SEM from the scores obtained from six animals. (b) The cumulative scores were measured for 30 min after administration of apomorphine. (c) Total time spent on the wall of the cage. ### p < 0.001, ## p < 0.01 compared with that of the saline group; * p< 0.05, ** p < 0.01, ***p <0.001 compared with that of the apomorphine (APO, mg/kg, i.p) group. Haloperidol (2 mg/kg, i.p) showed 100% inhibition of apomorphine response (data not shown). n.s- not significant.