Fig. 2. The relation between systemic dose of thiopental and spontaneous discharge of five dorsal spinocerebellar tract (DSCT) neurons is shown. Note that only a cumulative dose of 15 mg/kg was effective in suppressing DSCT neuronal activity and inducing anesthesia. Each bar represents the mean ± SD. *P < 0.05, repeated-measures analysis of variance and Dunnett test.