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累进比率和固定比率时间表下对强化物的偏好:单一安排与并发安排的比较

Preference for reinforcers under progressive- and fixed-ratio schedules: a comparison of single and concurrent arrangements.

作者信息

Glover Ashley C, Roane Henry S, Kadey Heather J, Grow Laura L

机构信息

Marcus Institute, Georgia State University, Georgia, USA.

出版信息

J Appl Behav Anal. 2008 Summer;41(2):163-76. doi: 10.1901/jaba.2008.41-163.

Abstract

Progressive-ratio (PR) schedules were used to identify the break point (i.e., the last schedule value completed) for 2 reinforcers under single and concurrent schedules. After the respective break points were established, the same reinforcers were presented under concurrent fixed-ratio (FR) schedules that were yoked to the break points obtained with the PR schedules. Results suggested that the participants responded more for the high-preference item than for the low-preference item, regardless of the presentation arrangement (single or concurrent presentations). This pattern of responding was maintained when the reinforcers were presented under dissimilar FR schedules. The results suggest that responding for differentially preferred stimuli may vary as a function of differences in schedule requirements.

摘要

采用累进比率(PR)程序来确定在单一和并发程序下两种强化物的断点(即完成的最后一个程序值)。在确定各自的断点后,在与PR程序获得的断点相匹配的并发固定比率(FR)程序下呈现相同的强化物。结果表明,无论呈现安排(单一或并发呈现)如何,参与者对高偏好项目的反应比对低偏好项目的反应更多。当强化物在不同的FR程序下呈现时,这种反应模式得以维持。结果表明,对不同偏好刺激的反应可能会因程序要求的差异而有所不同。

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本文引用的文献

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Progressive ratio as a measure of reward strength.渐进比率作为奖励强度的一种衡量方法。
Science. 1961 Sep 29;134(3483):943-4. doi: 10.1126/science.134.3483.943.
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Assessing reinforcers under progressive schedule requirements.在渐进式时间表要求下评估强化物。
J Appl Behav Anal. 2001 Summer;34(2):145-66. doi: 10.1901/jaba.2001.34-145.

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