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      The effects of D1 or D2 dopamine receptor antagonism in the medial preoptic area, ventral pallidum, or nucleus accumbens on the maternal retrieval response and other aspects of maternal behavior in rats.

      Behavioral Neuroscience

      Animals, Behavior, Animal, drug effects, Circadian Rhythm, physiology, Dopamine Antagonists, pharmacology, Dopamine D2 Receptor Antagonists, Dose-Response Relationship, Drug, Female, Globus Pallidus, Maternal Behavior, Models, Biological, Motor Activity, Nucleus Accumbens, Postpartum Period, Preoptic Area, Rats, Reaction Time, Receptors, Dopamine D1, antagonists & inhibitors, Time Factors

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          Abstract

          The medial preoptic area (MPOA), ventral pallidum (VP), and nucleus accumbens (NA) receive dopaminergic afferents and are involved in maternal behavior. Experiments investigated whether dopamine (DA) receptor antagonism in NA disrupts maternal behavior, determined the type of DA receptor involved, and investigated the involvement of drug spread to VP or MPOA. Injection of SCH 23390 (D1 DA receptor antagonist) into NA of postpartum rats disrupted retrieving at dosage levels that were ineffective when injected into MPOA or VP. Motor impairment was not the cause of the deficit. Injection of eticlopride (D2 DA receptor antagonist) into NA or VP was without effect. Results emphasize the importance of DA action on D1 receptors in NA for retrieval behavior. Copyright (c) 2006 APA, all rights reserved.

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          Journal
          16420162
          10.1037/0735-7044.119.6.1588

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