Abstract
This study was carried out to investigate effects of Kamiguibi-tang extract on learning ability of ethanol-treated rats. The rats were divided into 3 groups; normal, control and sample group. Control group administered ethanol at a dose of 3g/kg bw.(25 v/v %), while sample group administered the Kamiguibi-tang extract(200mg/kg) 30 min. before treating same dose of ethanol as control group orally. All groups were subjected to trials of straight channel on the 1 st day and to those of multiple T-maze during the following 3 days. The time required in normal group for the straight or T-maze of the 2nd and 3rd trials was significantly shorter than that of the 1 st, while the control group showed no significance. But in the straight channel or multiple T-maze trials, the sample group showed significant decrease in the time required against the control group and also showed significant decrease in the number of selecting errors.