The matching law and effects of reinforcer rate and magnitude on choice in transition
The matching law and effects of reinforcer rate and magnitude on choice in transition
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DOI：
10.1016/j.beproc.2007.12.003
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发表时间：
2008-06-01
影响因子：
1.3
通讯作者：
Kyonka, Elizabeth G. E.
中科院分区：
文献类型：
--
作者：
Kyonka, Elizabeth G. E.
四只鸽子在同时进行的程序中做出反应，其中根据独立的随机序列，强化物的比率和强度在整个过程中发生不可预测的变化。计划的相对强化率和强度始终为 2:1 或 1:2。鸽子的反应分配在会话中趋于稳定，多元回归分析表明，它是由当前会话的速率和幅度决定的。当前会话强化和幅度比的敏感性系数为正且具有统计显着性。尽管对比率和幅度的敏感性存在个体差异，但它们在受试者之间的相互作用并不显着。速率和幅度都控制着单次训练中的反应和单个强化物间的间隔。对会话内响应的分析表明，与与不同替代方案相关时相比，当与相同替代方案相关的更丰富的比率和更大的幅度时，偏好更加极端。总体而言，结果支持级联广义匹配律应用于转型选择时的可加性和独立性假设。 (c) 2007 Elsevier B.V. 保留所有权利。
Four pigeons responded in a concurrent-schedule procedure in which reinforcer rates and magnitudes changed unpredictably across sessions according to independent random series. Programmed relative reinforcement rates and magnitudes were always either 2:1 or 1:2. Pigeons' response allocation tended to stabilize within sessions and multiple regression analyses showed that it was determined by rates and magnitudes from the current session. Sensitivity coefficients were positive and statistically significant for current-session reinforcement and magnitude ratios. Although there were individual differences in sensitivity to rate and magnitude, their interaction was not significant across subjects. Rate and magnitude both controlled responding in single sessions and individual interreinforcer intervals. Analyses of responding within sessions showed that preference was more extreme when the richer rate and larger magnitude were associated with the same alternative than when they were associated with different alternatives. Overall, results support the concatenated generalized matching law's assumptions of additivity and independence as applied to choice in transition. (c) 2007 Elsevier B.V. All rights reserved.