大鼠的低反应率条件作用历史与固定间隔反应
Low-response-rate conditioning history and fixed-interval responding in rats.
作者信息
LeFrancois J R, Metzger B
机构信息
Psychology Department, Converse College, Spartanburg, South Carolina 29302-0006.
出版信息
J Exp Anal Behav. 1993 May;59(3):543-9. doi: 10.1901/jeab.1993.59-543.
Bar presses by one group of rats were conditioned under a differential-reinforcement-of-low-rate reinforcement schedule immediately prior to conditioning under a fixed-interval schedule. In a second group of rats, bar presses were conditioned first under a differential-reinforcement-of-low-rate schedule and then under a fixed-ratio schedule prior to conditioning under a fixed-interval schedule. Low response rates occurred under the fixed-interval schedule only when it was immediately preceded by low-rate conditioning. Otherwise, fixed-interval responding was similar to responding under the fixed-ratio schedule. This finding suggests that responses of laboratory animals are sensitive to immediate history, and, unlike human responses, are relatively insensitive to a history of low-rate conditioning when it is followed by high-rate conditioning.
一组大鼠的压杆行为在固定间隔程序条件化之前，先在低比率强化的差别强化程序下进行条件化。在第二组大鼠中，压杆行为先在低比率强化的差别强化程序下进行条件化，然后在固定比率程序下进行条件化，最后再进行固定间隔程序条件化。只有在低比率条件化紧接其后时，固定间隔程序下才会出现低反应率。否则，固定间隔反应与固定比率程序下的反应相似。这一发现表明，实验动物的反应对即时经历敏感，并且与人类反应不同，当低比率条件化之后是高比率条件化时，实验动物的反应对低比率条件化的经历相对不敏感。
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