The study compared the effects of current deprivation (hours since feeding) and maintenance schedule (hours per day fed) on the responsiveness to food. The subjects were 30 Holtzman rats assigned to three groups. Response measures were latency-to-eat and amount eaten in 1 min. Only maintenance schedule was shown to be significant. This result is consistent with previously demonstrated effects of these variables on food reinforcement and with theoretical views of Sheffield, Denny, and Premack.
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