Methods:applied the methods of Aschoff' entrainment,we obversed the phase response curve of electro-acupuncturing "Baihu方法:运用Aschoff导引方法,对比观察电针“百会”、“长强”、8-OH-DPAT、电针+8-OH-DPAT对金黄地鼠自发活动近似昼夜节律的影响及其相位反应曲线特点。