SENSITIVITY OF TIME ALLOCATION TO AN OVERALL REINFORCER RATE FEEDBACK FUNCTION IN CONCURRENT INTERVAL SCHEDULES
SENSITIVITY OF TIME ALLOCATION TO AN OVERALL REINFORCER RATE FEEDBACK FUNCTION IN CONCURRENT INTERVAL SCHEDULES
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DOI：
10.1901/jeab.1989.51-215
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发表时间：
1989-03-01
影响因子：
2.7
通讯作者：
KERR, A
中科院分区：
文献类型：
--
作者：
DAVISON, M;KERR, A
六只鸽子接受并行可变间隔时间表的训练，其中反馈功能安排总体强化率要么（a）独立于偏好，（b）随着绝对偏好的增加而减少，或（c）随着绝对偏好的增加而增加。在实验1中，相互强化间隔中的强化率由前一间隔中的绝对时间分配比确定。当安排的强化物比率变化时，没有证据表明总体强化物率可以控制偏好。在实验2中，反馈函数设置强化率是绝对偏好的反函数，窗口持续时间是固定时间。在第一阶段，使用提供四比一强化比率的时间表，在四种条件下窗口持续时间从 20 秒减少到 5 秒。然后，在第二阶段和第三阶段，布置的强化物比率发生变化。在第 2 阶段，当前 5 秒时间窗口内的强化率由前一个 5 秒窗口中的偏好决定，在第 3 阶段，窗口持续时间为 20 秒。同样，没有迹象表明所获得的总体强化率有控制作用。这些数据对一些理论提出了质疑，这些理论表明匹配的基础过程是最大化总体强化率的过程之一，或者并发非周期性计划中的偏好在一定程度上受到总体强化率的控制。他们还质疑并发计划偏好是由分子最大化控制的概念。
Six pigeons were trained on concurrent variable-interval schedules in which feedback functions arranged that the overall reinforcer rate either (a) was independent of preference, (b) decreased with increasing abosolute preference,or (c) increased with increasing absolute preference. In Experiment 1, the reinforcer rate in an interreinforcement interval was determined by the absolute time-allocation ratio in the previous interval. When arranged reinforcer ratios were varied, there was no evidence of control over preference by overall reinforcer rate. In Experiment 2, the feedback function arranged that reinforcer rates were an inverse function of absolute preference, and window durations were fixed times. In Phase 1, using schedules that provided a four-to-one reinforcer ratio, the window duration was decreased from 20 s to 5 s over four conditions. Then, in Phases 2 and 3, the arranged reinforcer ratios were varied. In Phase 2, the reinforcer rate in the current 5-s time window was determined by preference in the previous 5-s window, and in Phase 3, the window durations were 20 s. Again, there was no indication of control by obtained overall reinforcer rate. These data call into question theories that suggest that the process underlying matching is one of maximizing overall reinforcer rates, or that preference in concurrent aperiodic schedules is controlled to any extent by overall reinforcer rate. They also question the notion that concurrent-schedule preference is controlled by molecular maximizing.