After per-fusing the brain sliceswith artificial cerebrospinal fluid containing Ach(10-7mol/L) for 3 min,discharge rate of 18 units was significantly increased,this responsc was blocked by muscular acetylcholine receptor antagonist-atropine.

• 当脑片用含乙酰胆碱（10－7mol/L）的人工脑脊液灌流后，有18个单位放电频率明显增加，这种反应可被乙酰胆碱拮抗剂阿托品所阻断。