N-Butyl alcohol extract.Methods:There were two kinds of methods.The first was about Polygonum bistorta L.n-Butyl alcohol extract decreasing the spontaneous activity by the hunged cage in mice;

• 方法:观察拳参正丁醇提取物对小鼠自发活动的影响和戊巴比妥钠阈上和阈下催眠剂量对小鼠睡眠时间的影响。