Cited by 226Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchMemory Processes and Influences

Cholinergic Neurotransmission Is Essential for Perirhinal Cortical Plasticity and Recognition Memory

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Warburton, E.Clea, Koder, Timothy, Cho, Kwangwook, Massey, Peter V, Duguid, Gail, Barker, Gareth R.I, Aggleton, John P, Bashir, Zafar I +1 more·2003·Neuron

Abstract

We establish the importance of cholinergic neurotransmission to both recognition memory and plasticity within the perirhinal cortex of the temporal lobe. The muscarinic receptor antagonist scopolamine impaired the preferential exploration of novel over familiar objects, disrupted the normal reduced activation of perirhinal neurones to familiar compared to novel pictures, and blocked production of long-term depression (LTD) but not long-term potentiation (LTP) of synaptic transmission in perirhinal slices. The consistency of these effects across the behavioral, systems, and cellular levels of analysis provides strong evidence for the involvement of cholinergic mechanisms in synaptic plastic processes within perirhinal cortex that are necessary for recognition memory.

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  • This depression of synaptic efficacy could contribute to the repetition suppression of neural responses in areas such as the perirhinal cortex.

    “This depression of synaptic efficacy could contribute to the repetition suppression of neural responses in areas such as the perirhinal cortex (Bogacz and Brown, 2003; Warburton et al., 2003).”

    From Modes and models of forebrain cholinergic neuromodulation of cognition (2011) · cites this paper as Warburton et al., 2003

  • Muscarinic receptor activation causes long-term depression of synaptic efficacy.

    “Muscarinic receptor activation causes long-term depression of synaptic efficacy (Kirkwood et al., 1999; Warburton et al., 2003).”

    From Modes and models of forebrain cholinergic neuromodulation of cognition (2011) · cites this paper as Warburton et al., 2003

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  1. Swanson, L.W. (1998). Brain Maps: Structure of the Rat Brain (Ox- Neurosci. 15, 6592-6604. ford: Elsevier).

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Authors
Warburton, E. C., Koder, T., Cho, K., Massey, P. V., Duguid, G., Barker, G. R. I., Aggleton, J. P., Bashir, Z. I., & Brown, M. W.
Affiliations
University of Bristol (GB)
Corresponding author
Brown, Malcolm W
Venue
Neuron
Publisher
Elsevier BV
Published
2003-06
Volume
38
Issue
6
Pages
987-996
ISSN
0896-6273 (ISSN-L)
OpenAlex
W2102815754
Cited by
226
References
60
Citations by year
2026: 2 · 2025: 2 · 2024: 3 · 2023: 9 · 2022: 7 · 2021: 6 · 2020: 6 · 2019: 4 · 2018: 14 · 2017: 7 · 2016: 12 · 2015: 11 · 2014: 15 · 2013: 12 · 2012: 23
FWCI
4.88
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
cholinergic neurotransmission, perirhinal cortex, recognition memory, synaptic plasticity, scopolamine, muscarinic receptors, long-term depression, long-term potentiation, object recognition, novel object exploration, temporal lobe
MeSH terms
Animals, Male, Memory, Synaptic Transmission, Neuronal Plasticity, Neurons, Receptors, Muscarinic, Scopolamine, Muscarinic Antagonists, Entorhinal Cortex, Recognition, Psychology, Rats

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