Cited by 327Memory and Neural MechanismsMemory Processes and InfluencesNeuroscience and Neuropharmacology Research

The rodent hippocampus is essential for nonspatial object memory

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Cohen, Sarah J., Munchow, Alcira H., Rios, Lisa M., Zhang, Gongliang, Ásgeirsdóttir, Herborg N., Stackman, Robert W.·2013·Current Biology

Abstract

Elucidating the role of the rodent hippocampus in object recognition memory is critical for establishing the appropriateness of rodents as models of human memory and for their use in the development of memory disorder treatments. In mammals, spatial memory and nonspatial memory depend upon the hippocampus and associated medial temporal lobe (MTL) structures. Although well established in humans, the role of the rodent hippocampus in object memory remains highly debated due to conflicting findings across temporary and permanent hippocampal lesion studies and evidence that the perirhinal cortex may support object memory. In the current studies, we used intrahippocampal muscimol microinfusions to transiently inactivate the male C57BL/6J mouse hippocampus at distinct stages during the novel object recognition (NOR) task: during object memory encoding and consolidation, just consolidation, and/or retrieval. We also assessed the effect of temporary hippocampal inactivation when objects were presented in different contexts, thus eliminating the spatial or contextual components of the task. Lastly, we assessed extracellular dorsal hippocampal glutamate efflux and firing properties of hippocampal neurons while mice performed the NOR task. Our results reveal a clear and compelling role of the rodent hippocampus in nonspatial object memory.

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Authors
Cohen, S. J., Munchow, A. H., Rios, L. M., Zhang, G., Ásgeirsdóttir, H. N., & Stackman, R. W.
Affiliations
  • Florida Atlantic University (US)
  • Max Planck Florida Institute for Neuroscience (US)
  • Anhui Medical University (CN)
Corresponding author
Stackman, Robert W.
Venue
Current Biology
Publisher
Elsevier BV
Published
2013-09
Volume
23
Issue
17
Pages
1685-1690
ISSN
0960-9822 (ISSN-L)
OpenAlex
W2087321410
Cited by
325
References
54
Citations by year
2026: 16 · 2025: 22 · 2024: 15 · 2023: 21 · 2022: 29 · 2021: 33 · 2020: 33 · 2019: 26 · 2018: 37 · 2017: 23 · 2016: 26 · 2015: 19 · 2014: 22 · 2013: 3
FWCI
12.75
Type
journal article
Language
en
Open access
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (MH086591, R01MH086591)
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
hippocampus, object recognition memory, non-spatial memory, novel object recognition, muscimol inactivation, memory consolidation, memory encoding, memory retrieval, contextual memory, dorsal hippocampus, glutamate efflux, perirhinal cortex
MeSH terms
Animals, Hippocampus, Male, Memory, Mice, Inbred C57BL, Glutamic Acid, Mice

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