Nonreward anticipated: Effects on extinction runway performance in the rat |
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| Authors: | M J Homzie |
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| Institution: | 1. University of Virginia, 22901, Charlottesville, Virginia
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| Abstract: | Following a 47-day extinction procedure, the reinstatement of the cue previously associated with reward produced an immediate improvement in performance. The cue was the opportunity to traverse the alley following an “anticipated” nonrewarded runway trial. Moreover, the animals trained in this matter exhibited daily increments in performance during the initial phase of extinction testing. The results were interpreted as consistent with the notion that the difference in extinction performance of one group as compared to another does not necessarily reflect the relative “strengths” of the instrumentally acquired habits. Instead, it probably indicates the degree of similarity of the extinction testing procedure to the acquisition training condition previously associated with reinforcement for the two individual groups. |
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