Hendry D P, Dillow P V
J Exp Anal Behav. 1966 Jul;9(4):337-49. doi: 10.1901/jeab.1966.9-337.
Experiment 1 showed that the three stimuli associated with three chained fixed-interval links could be used to maintain observing behavior. Experiment 2 showed that three stimuli correlated with the passage of time since the last reinforcement in a fixed-interval schedule could be used to maintain observing behavior. In both experiments most observing responses occurred midway between reinforcements. Few occurred just before or just after reinforcement. Experiment 3 showed that the decline in the rate of observing behavior just before reinforcement was reduced when more stimuli could be observed. The relatively high terminal rate of observing behavior that resulted was maintained even when at least 4 sec intervened between the reinforcement and the last observed stimulus.
实验1表明,与三个链式固定间隔环节相关联的三种刺激可用于维持观察行为。实验2表明,与固定间隔程序中自上次强化以来的时间流逝相关的三种刺激可用于维持观察行为。在两个实验中,大多数观察反应都发生在强化之间的中间时段。很少有反应发生在强化之前或之后。实验3表明,当能观察到更多刺激时,强化前观察行为速率的下降会减少。即使在强化与最后观察到的刺激之间间隔至少4秒,由此产生的相对较高的观察行为终末速率仍能维持。