1.Test surface righting reflex,cliff avoidance reflex,negative geotaxis reflex,air righting reflex and forelimb grip reflex of ninety-three rats.

1.同日龄幼大鼠93只,雌雄不拘,分别对平面,射,悬崖回避试验,负趋地性试验,前肢握力试验进行测试。