Cited by 89Memory and Neural MechanismsMemory Processes and InfluencesNeuroscience and Neuropharmacology Research

Chemogenetic inactivation of the dorsal hippocampus and medial prefrontal cortex, individually and concurrently, impairs object recognition and spatial memory consolidation in female mice

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Tuscher, Jennifer J., Taxier, Lisa R., Fortress, Ashley M., Frick, Karyn M.·2018·Neurobiology of Learning and Memory

Abstract

The dorsal hippocampus (DH) and medial prefrontal cortex (mPFC) are brain regions essential for processing and storing episodic memory. In rodents, the DH has a well-established role in supporting the consolidation of episodic-like memory in tasks such as object recognition and object placement. However, the role of the mPFC in the consolidation of episodic-like memory tasks remains controversial. Therefore, the present study examined involvement of the DH and mPFC, alone and in combination, in object and spatial recognition memory consolidation in ovariectomized female mice. To this end, we utilized two types of inhibitory Designer Receptors Exclusively Activated by Designer Drugs (DREADDs) to inactivate the DH alone, the mPFC alone, or both brain regions concurrently immediately after object training to assess the role of each region in the consolidation of object recognition and spatial memories. Our results using single and multiplexed DREADDS suggest that excitatory activity in the DH and mPFC, alone or in combination, is required for the successful consolidation of object recognition and spatial memories. Together, these studies provide critical insight into how the DH and mPFC work in concert to facilitate memory consolidation in female mice.

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Authors
Tuscher, J. J., Taxier, L. R., Fortress, A. M., & Frick, K. M.
Affiliations
University of Wisconsin–Milwaukee (US)
Corresponding author
Frick, Karyn M.
Venue
Neurobiology of Learning and Memory
Publisher
Elsevier BV
Published
2018-12
Volume
156
Pages
103-116
ISSN
1074-7427 (ISSN-L)
OpenAlex
W2899938484
Cited by
88
References
88
Citations by year
2026: 5 · 2025: 10 · 2024: 10 · 2023: 11 · 2022: 17 · 2021: 17 · 2020: 12 · 2019: 6
FWCI
5.21
Type
journal article
Language
en
Open access
Locations
  • Neurobiology of Learning and Memory (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion, cc-by-nc-nd)
Funders
University of Wisconsin-Milwaukee College of Letters & Science
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
dorsal hippocampus, medial prefrontal cortex, memory consolidation, object recognition memory, spatial memory, episodic memory, chemogenetic inactivation, DREADD
MeSH terms
Memory Consolidation, Animals, Behavior, Animal, Female, Genetic Techniques, Hippocampus, Mice, Inbred C57BL, Prefrontal Cortex, Recognition, Psychology, Mice, Memory, Episodic, Spatial Memory

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