Objective To compare three tests and statistical methods in the measurement sensitivity oflearning and memory function in rat by step through avoidance response.
目的为了提高避暗反应测定动物学习记忆功能的敏感性，本实验对三种实验及统计方法进行了评价。
2
The impairment oflearning and memory of lead exposed rats was evaluated by examining the passive avoidance response and conditioned avoidance response.
本实验采用明暗箱被动回避反应和穿梭箱条件性回避反应测定，探讨了铅对大鼠学习与记忆的损害作用。
3
Several behaviour models such as active avoidance reaction (AAR), once passive avoidance reaction (OPAR), spatial discrimination memory (SDM), were used to research the process oflearning and memory.