在痛觉生理的动物实验研究中

常采用各种不同的测痛方法。本文报告自制一种辐射热测痛的记时装置;以甩尾反应为指标

借电磁标和三笔记录仪记录大白鼠甩尾的时间

代表痛(反应)阈。这种装置比目前国内所用的方法简便易行。方法本装置以幅射热为伤害性刺激

以反射时为痛反应指标

采用贵阳永青示波器厂Lz 6型三笔记录仪记时

选用0.5毫米/秒的走纸速度;用电磁标作时标

电源为3伏干电池;用12伏、50瓦、8.75毫米电影放映灯泡为幅射热源

将灯泡置于铜套内

通过稳压电源以调压变压器调节其灯丝电压。为达到同步地控制灯泡和电磁标启动和关闭的目The present study is to introduce a time register for measurement of pain response. Radiant heat acted on the tail skin of rat was taken as a noxious stimulus. Latency of tail-flick recorded with an electro-magnetic marker and a pen recorder Constitution of this apparatus is simple. Re- liability of the method was examined. The experimental results indicate that it is very suitable for recording not only the times of tail-flick re- flex in rat but also the times of rised-head reflex or withdrawal-leg re- flex in rabbit

etc.