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Renewal of extinguished instrumental responses: independence from Pavlovian processes and dependence on outcome value

Cohen, Sabrina Rachel and Honey, Robert Colin 2013. Renewal of extinguished instrumental responses: independence from Pavlovian processes and dependence on outcome value. Learning & Behavior 41 (4) , pp. 379-389. 10.3758/s13420-013-0113-y

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Abstract

The source of renewal of instrumental responding in rats was investigated. In Experiment 1, two responses (R1 and R2) were reinforced with one outcome (O1) in contexts A and B (i.e., R1→O1, R2→O1), and then R2 was extinguished in A and R1 was extinguished in B. At test, the rate of R1 was higher than that of R2 in context A, and the reverse was the case in context B: Renewed responding was independent of the Pavlovian context→O1 associations. In Experiment 2, all rats received R1→O1 and R2→O2 trials in A and then were placed in B, where they were sated on O2 and either did (Group Extinction) or did not (Group No Extinction) receive concurrent extinction of R1 and R2. At test, we found more responding in A than in B for Group Extinction, but not for Group No Extinction, and the renewed responding in A was as sensitive to the current value of the outcome as responding that had not been subject to extinction (i.e., the rate was higher for R1 than for R2). That is, the renewed responding was goal-directed. These results identify the removal of contextual inhibion of either the response or the response→outcome associaon as potenal bases for renewal, and the response→outcome associaon as the source of renewed responding.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Subjects: B Philosophy. Psychology. Religion > BF Psychology
Publisher: Springer US
ISSN: 1543-4494
Last Modified: 04 Jun 2017 05:19
URI: http://orca-mwe.cf.ac.uk/id/eprint/50777

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