Wasserman E A, Jensen D D
Science. 1969 Dec 5;166(3910):1307-9. doi: 10.1126/science.166.3910.1307.
Continuously rewarded rats show a decrease in running speed on a runway recently traversed by other rats undergoing experimental extinction. This "pseudo-extinction" effect is caused by discriminable odors emitted by extinction subjects. These odors could be confounding variables in studies using forms of aversive stimulation.
持续得到奖励的大鼠在最近被其他正在经历实验性消退的大鼠走过的跑道上奔跑速度会降低。这种“假消退”效应是由消退实验对象散发的可辨别气味引起的。在使用厌恶刺激形式的研究中，这些气味可能是混杂变量。
