When the slices were perfused with artificial cerebrospinal fluid (ACSF) containing noradrenaline (NA) (10-6 mol/L), firing rates of 20 units significantly increased, those of 8 units decreased or even ceased, and those of 35 units, not affected.

• 当灌流含去甲肾上腺素(NA 10~(-6)mol/L)的人工脑脊液后,20个单位放电频率增加,8个单位放电频率降低甚至停止,35个单位无明显反应。