Cited by 75Memory and Neural MechanismsNeurotransmitter Receptor Influence on BehaviorMemory Processes and Influences

Consolidation of object recognition memory requires simultaneous activation of dopamine D1/D5 receptors in the amygdala and medial prefrontal cortex but not in the hippocampus

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Rossato, Janine I., Radiske, Andressa, Kohler, Cristiano A., Gonzalez, Carolina, Bevilaqua, Lia R., Medina, Jorge H., Cammarota, Martín·2013·Neurobiology of Learning and Memory

Abstract

The mesocorticolimbic dopaminergic system includes the ventral tegmental area (VTA) and its projections to the amygdala (AMY), the hippocampus (HIP) and the medial prefrontal cortex (mPFC), among others. Object recognition (OR) long-term memory (LTM) processing requires dopaminergic activity but, although some of the brain regions mentioned above are necessary for OR LTM consolidation, their possible dopamine-mediated interplay remains to be analyzed. Using adult male Wistar rats, we found that posttraining microinjection of the dopamine D1/D5 receptor antagonist SCH23390 in mPFC or AMY, but not in HIP, impaired OR LTM. The dopamine D2 receptor agonist quinpirole had no effect on retention. VTA inactivation also hindered OR LTM, and even though this effect was unaffected by co-infusion of the dopamine D1/D5 receptor agonist SKF38393 in HIP, mPFC or AMY alone, it was reversed by simultaneous activation of D1/D5 receptors in the last two regions. Our results demonstrate that the mesocorticolimbic dopaminergic system is indeed essential for OR LTM consolidation and suggest that the role played by some of its components during this process is much more complex than previously thought.

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Crossref · 10.1016/j.nlm.2013.07.012

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Authors
Rossato, J. I., Radiske, A., Kohler, C. A., Gonzalez, C., Bevilaqua, L. R., Medina, J. H., & Cammarota, M.
Affiliations
  • Universidade Federal do Rio Grande do Norte (BR)
  • Universidad de Buenos Aires (AR)
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2013-11
Volume
106
Pages
66-70
ISSN
1074-7427 (ISSN-L)
OpenAlex
W2065427765
Cited by
75
References
55
Citations by year
2026: 1 · 2025: 2 · 2024: 2 · 2023: 4 · 2022: 9 · 2021: 5 · 2020: 5 · 2019: 5 · 2018: 7 · 2017: 10 · 2016: 3 · 2015: 10 · 2014: 9 · 2013: 3
FWCI
4.55
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Neurobiology of Learning and Memory (publishedVersion)
  • PubMed (publishedVersion)
  • LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
  • Americanae (AECID Library) (submittedVersion, other-oa)
Funders
  • International Brain Research Organization
  • Conselho Nacional de Desenvolvimento Científico e Tecnológico
  • Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul
  • Fundação de Apoio à Pesquisa do Rio Grande do Norte
  • Agencia Nacional de Promoción Científica y Tecnológica
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
object recognition memory, long-term memory consolidation, dopamine D1/D5 receptors, ventral tegmental area, amygdala, medial prefrontal cortex, hippocampus, quinpirole, SCH 23390, SKF 38393
MeSH terms
Amygdala, Animals, Benzazepines, Hippocampus, Male, 2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine, Rats, Wistar, Prefrontal Cortex, Receptors, Dopamine D1, Receptors, Dopamine D2, Dopamine Agonists, Dopamine Antagonists, Quinpirole, Receptors, Dopamine D5, Rats

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