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Rats' performance on variable-interval schedules with a linear feedback loop between response rate and reinforcement rate.

Phil Reed·Tom Hildebrandt·Julie DeJongh·Mariane Soh
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Abstract

Three experiments investigated whether rats are sensitive to the molar properties of a variable-interval (VI) schedule with a positive relation between response rate and reinforcement rate (i.e., a VI+ schedule). In Experiment 1, rats responded faster on a variable ratio (VR) schedule than on a VI+ schedule with an equivalent feedback function. Reinforced interresponse times (IRTs) were shorter on the VR as compared to the VI+ schedule. In Experiments 2 and 3, there was no systematic difference in response rates maintained by a VI+ schedule and a VI schedule yoked in terms of reinforcement rate. This was found both when the yoking procedure was between-subject (Experiment 2) and within-subject (Experiment 3). Mean reinforced IRTs were similar on both the VI+ and yoked VI schedules, but these values were more variable on the VI+ schedule. These results provided no evidence that rats are sensitive to the feedback function relating response rate to reinforcement rate on a VI+ schedule.

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AnimalsBehavior, AnimalFeedbackMaleRatsReinforcement ScheduleJournal Article

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Phil Reed, Tom Hildebrandt, Julie DeJongh, Mariane Soh. 2003. Rats' performance on variable-interval schedules with a linear feedback loop between response rate and reinforcement rate.. https://doi.org/10.1901/jeab.2003.79-157

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