Runway performance in rats as determined by the predictive value of intertrial reinforcements.

Homzie, M. J.; Gohmann, Timothy; Hall, Stanley W.

doi:10.1037/h0030352

Journal of Comparative and Physiological Psychology

1971

DOI: 10.1037/h0030352

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Runway performance in rats as determined by the predictive value of intertrial reinforcements.

M. J. Homzie¹,

Timothy Gohmann²,

Stanley W. Hall³

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Cited by 8 publications

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“…According to the aftereffects hypothesis (Capaldi, 1966(Capaldi, , 1967, it would be expected that the reinstatement of the cue previously associated with reward (i.e., the opportunity to traverse the alleyway following a nonreinforced trial) would result in an immediate improvement in runway performance (cf. Homzie et al, 1971: Homzie & Rudy, 1971. A control group was included that received the same daily number of reinforcement and nonreinforcement runway trials, but the acquisition training sequence was such that this group was not provided with reliable cues as to forthcoming goal events.…”

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Nonreward anticipated: Effects on extinction runway performance in the rat

Homzie

1974

Animal Learning & Behavior

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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.Following an extensive experimental extinction procedure, rats typically refuse to run and even resist being placed into the runway. Within the context of the sequential aftereffects hypothesis (e.g., Capaldi, 1966Capaldi, , 1967, extinction is viewed as a transfer test situation. During acquisition, the initial phase of an experiment, the animal learns to run in the presence of specific stimuli: extinction, the transfer task, consists of testing for this learned behavior under conditions differing from those that prevailed during acquisition training. Certainly, the dominant class of stimuli changed (from acquisition to extinction) are those related to the reinforcement conditions. The extinction procedure, however, can be conducted such as to produce a large decremerit in a rat's running speed but not remove the contingency established during acquisition between particular stimuli and subsequent reinforcement events (e.g., Homzie, Golunann, & Hall, 1971).In the present experiment during acquisition training, one group of animals was provided with consistent cues as to forthcoming reinforcement and nonreinforcement events: the reinforcement schedule was such that, following a nonreinforced runway trial, all subsequent opportunities to locomote in the apparatus were rewarded. The extinction procedure consisted of administering only one nonreinforced runway trial per day, thereby not breaking the contingency established during acquisition training between "the animal's opportunity to locomote in the alleyway following nonreinforced trials" and subsequent reinforced runway trials. According to the aftereffects hypothesis (Capaldi, 1966(Capaldi, , 1967, it would be expected that the reinstatement of the cue previously associated with reward (i.e., the opportunity to traverse the alleyway following a nonreinforced trial) would result in an immediate improvement in runway performance (cf. Homzie et al, 1971: Homzie & Rudy, 1971. A control group was included that received the same daily number of reinforcement and nonreinforcement runway trials, but the acquisition training sequence was such that this group was not provided with reliable cues as to forthcoming goal events. METHOD SubjectsThe Ss were 17 ...

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Nonreward anticipated: Effects on extinction runway performance in the rat

Homzie

1974

Animal Learning & Behavior

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The inhibitory effect of pretrial reinforcement on instrumental conditioning

Terry

1985

Pav. J. Biol. Sci.

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Acquisition and transfer effects of cued and noncued double alternation schedules with rats

Kendall

Homzie

1973

Learning and Motivation

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Runway performance in rats as determined by the predictive value of intertrial reinforcements.

Cited by 8 publications

References 4 publications

Nonreward anticipated: Effects on extinction runway performance in the rat

Nonreward anticipated: Effects on extinction runway performance in the rat

The inhibitory effect of pretrial reinforcement on instrumental conditioning

Acquisition and transfer effects of cued and noncued double alternation schedules with rats

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