DeCarlo L T
J Exp Anal Behav. 1985 Jan;43(1):75-81. doi: 10.1901/jeab.1985.43-75.
Pigeons were offered choices between a variable-time schedule that arranged reinforcers throughout the session and a variable-time schedule that arranged reinforcers only when the pigeon was spending time on it. The subjects could maximize the overall rate of reinforcement in this situation by biasing their time allocation towards the latter schedule. This arrangement provides an alternative to concurrent variable-interval variable-ratio schedules for testing whether animals maximize overall rates or match relative rates, and has the advantage of being free of the asymmetrical response requirements present with those schedules. The results were contrary to those predicted by maximizing: The bias it predicts did not appear.
给鸽子提供两种可变时距程序的选择,一种是在整个实验过程中安排强化物,另一种是只有当鸽子在该程序上花费时间时才安排强化物。在这种情况下,实验对象可以通过将时间分配偏向后者的程序来使整体强化率最大化。这种安排为测试动物是使整体强化率最大化还是匹配相对强化率提供了一种替代同时可变间隔可变比率程序的方法,并且具有不存在那些程序所具有的不对称反应要求的优点。结果与最大化预测的结果相反:预测的偏向并未出现。