Journal ArticleDOI
Progressive Ratio as a Measure of Reward Strength
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TLDR
Four rats were trained to press a lever on a ratio schedule of reinforcement in which the number of lever presses required on each consecutive run increased by a fixed increment.Abstract:
Four rats were trained to press a lever on a ratio schedule of reinforcement in which the number of lever presses required on each consecutive run increased by a fixed increment. Both concentration and volume of the reward were varied. Relationships were obtained between reward and deprivation variables and the size of the final completed ratio run.read more
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What is the role of dopamine in reward: hedonic impact, reward learning, or incentive salience?
TL;DR: It is suggested that dopamine may be more important to incentive salience attributions to the neural representations of reward-related stimuli and is a distinct component of motivation and reward.
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Progressive ratio schedules in drug self-administration studies in rats: a method to evaluate reinforcing efficacy
TL;DR: This review addresses the technical, statistical, and theoretical issues related to the use of the PR schedule in self-administration studies in rats to examine psychostimulant and opiate reinforcement.
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Deconstruction of a neural circuit for hunger
TL;DR: It is shown that AGRP neuron suppression of oxytocin neurons is critical for evoked feeding, revealing a new neural circuit that regulates hunger state and pathways associated with overeating disorders.
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Economic demand and essential value.
Steven R. Hursh,Alan Silberberg +1 more
TL;DR: This article uses demand curves to map how reinforcer consumption changes with changes in the "price" different ratio schedules impose and uses an exponential equation to scale the strength or essential value of a reinforcer, independent of the scalar dimensions of the reinforcer.