Innis N K, Cooper S J, Mitchell S K
Department of Psychology, University of Western Ontario, London, Ontario, Canada.
Behav Processes. 1993 Jun;29(3):229-38. doi: 10.1016/0376-6357(93)90126-C.
Pigeons typically pause following food presentation on schedules that program food at regular intervals. These postreinforcement pauses (prps) are a constant proportion of the interfood interval (IFI). Wynne and Staddon (1988) proposed one-back linear waiting as an account for postreinforcement pausing, or waiting time, as they called it, on response-initiated-delay schedules. Moreover, they implied that the same process could account for the prp on all fixed-interval schedules. This study examined prp performance of pigeons on two chained schedules of reinforcement, one with cyclically-changing IFIs and one in which the IFI was constant. The results provide support for the linear waiting hypothesis and replicate the findings of Innis et al. (1993) who examined performance on similar chained schedules.
鸽子通常会在按照固定时间间隔安排食物投放的时间表上，在食物呈现后停顿。这些强化后停顿（PRP）在食物间隔时间（IFI）中所占比例恒定。Wynne和Staddon（1988）提出了单步线性等待来解释强化后停顿，或者如他们所称的等待时间，在响应启动延迟时间表上的情况。此外，他们暗示相同的过程可以解释所有固定间隔时间表上的PRP。本研究考察了鸽子在两种链式强化时间表上的PRP表现，一种是IFI周期性变化的，另一种是IFI恒定的。结果为线性等待假说提供了支持，并重复了Innis等人（1993）的研究结果，他们考察了在类似链式时间表上的表现。
