开场运动 （Open field）是一种最常用来检测被试动物自发活动量的行为学实验，明暗箱 （Light-dark box）和强迫游泳（Forced swimming test）实验多用来检测动物的焦虑 及抑郁行为。
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light-dark box test 明暗箱实验
When placed in a box with light and dark compartments, most mice tend to seek refuge in the dark sections-but not the germ-free mice.
当被置于淡与暗区域，大部分老鼠会跑到暗区域，但无菌鼠不会。
Rats in group B were maintained in dark box after 6 hours light esposure.
实验B组的大鼠光照6小时后在暗箱中喂养。
Step 7 The default light is too dark. You need to add more light sources by dragging the lamp icon to the preview box. Set its type to Omni.
默认灯光太暗了，需要添加更多的光源，将下面灯泡样的图案拖到预览图上。设置全光源。
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