ArticleBehavioural pharmacology2013
The dopamine D2 antagonist eticlopride accelerates extinction and delays reacquisition of food self-administration in rats.
Article in Behavioural pharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
4 citing papers in PubMed, 6 citations in OpenAlex.
- Associative memory neurons are recruited in PFC-centered circuits to encode schizophrenia-like behavior by dopaminergic receptor-II.Molecular psychiatry · 2026Article
- Article
- D2-Like Receptors Mediate Dopamine-Inhibited Insulin Secretion via Ion Channels in Rat Pancreatic β-Cells.Frontiers in endocrinology · 2020Article
- Hormonal and neural mechanisms of food reward, eating behaviour and obesity.Nature reviews. Endocrinology · 2014Review
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
Dopamine receptors are implicated in the reinforcing effects of food and drug reinforcement. The purpose of this study was to evaluate whether blocking D2 dopamine receptors during extinction (secondary reinforcement) would affect reacquisition of responding for food pellets (primary reinforcement). Food-restricted rats self-administered (fixed-ratio 1) food pellets in 1-h daily sessions for 7 days. For the next 7 days rats responded in extinction conditions. Before each extinction session rats were injected with saline or the dopamine D2 antagonist eticlopride (0.03 mg/kg, subcutaneously). After the extinction phase, rats were allowed to reacquire food pellet self-administration in seven daily sessions, and received saline or eticlopride before each session. Four treatment groups were represented: saline extinction, saline reacquisition; eticlopride extinction, saline reacquisition; saline extinction, eticlopride reacquisition; and eticlopride extinction, eticlopride reacquisition. Locomotor activity did not differ between eticlopride-treated and saline-treated rats throughout the study. Extinction was accelerated in eticlopride-treated rats. Eticlopride also delayed reacquisition of food self-administration compared with saline-treated rats. Rats administered eticlopride during extinction showed delayed reacquisition and a decreased response rate for food during the reacquisition phase. Indirectly reducing the value of a reinforcer in this way may provide a novel approach for reducing addiction-related food or drug self-administration behaviors.
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