在“自我控制”范式中的选择：消退程序的影响。
Choice in a "self-control" paradigm: effects of a fading procedure.
出版信息
J Exp Anal Behav. 1978 Jul;30(1):11-7. doi: 10.1901/jeab.1978.30-11.
Pigeons chose between an immediate 2-second reinforcer (access to grain) and a 6-second reinforcer delayed 6 seconds. The four pigeons in the control group were exposed to this condition initially. The four experimental subjects first received a condition where both reinforcers were delayed 6 seconds. The small reinforcer delay was then gradually reduced to zero over more than 11,000 trials. Control subjects almost never chose the large delayed reinforcer. Experimental subjects chose the large delayed reinforcer significantly more often. Two experimental subjects showed preference for the large reinforcer even when the consequences for pecking the two keys were switched. The results indicate that fading procedures can lead to increased "self-control" in pigeons in a choice between a large delayed reinforcer and a small immediate reinforcer.
鸽子在即时的 2 秒强化物（获得谷物）和延迟 6 秒的 6 秒强化物之间做出选择。最初，对照组的四只鸽子接触到这种情况。前四只实验动物首先接受了两种强化物都延迟 6 秒的条件。然后，在超过 11000 次试验中，小的强化物延迟逐渐减少到零。控制组几乎从不选择大的延迟强化物。实验组选择大的延迟强化物的频率明显更高。即使啄两个键的后果被切换，两个实验动物仍然表现出对大强化物的偏好。结果表明，在大延迟强化物和小即时强化物之间的选择中，淡出程序可以导致鸽子的“自我控制”增加。
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