geotaxis

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

同日龄幼大鼠93只,雌雄拘,分别对平面翻正,空中翻正反射,悬崖回避试验,负趋地试验,前肢握力试验进行测试。