The automatic analysis may be helped by interaction with the experimenter. 自动分析也可因实验者的参与而得到帮助。
And when the experimenter stuck his tongue out, infants stuck theirs out. 实验者吐舌头的时候，婴儿才吐舌头。
The child and experimenter then decamped to another room to wait while the machine did its work. 然后孩子跟著实验人员逃进另一间屋子，等机器施展魔力。
Next, a screen was positioned in front of the monkey so that it could not see the experimenter's hand grasping the food but could only guess the action's conclusion. 然后，把一块屏幕放在猴子面前，不让猴子看到实验人员去抓食物的动作，而只能猜想后续的动作。
