Cited by 615Neuroscience and Neuropharmacology ResearchMemory and Neural MechanismsNeural dynamics and brain function

Synaptic tagging: implications for late maintenance of hippocampal long-term potentiation

Frey, Uwe, Morris, Richard G.M.·1998·Trends in Neurosciences

Abstract

A novel property of hippocampal LTP, 'variable persistence', has recently been described that is, we argue, relevant to the role of LTP in information storage. Specifically, new results indicate that a particular pattern of synaptic activation can give rise, either to a relatively short-lasting LTP, or to a longer-lasting LTP as a function of the history of activation of the neuron. This has led to the idea that the induction of LTP is associated with the setting of a'synaptic tag' at activated synapses, whose role is to sequester plasticity-related proteins that then serve to stabilize temporary synaptic changes and so extend their persistence. In this article, we outline the synaptic tag hypothesis, compare predictions it makes with those of other theories about the persistence of LTP, and speculate about the cellular identity of the tag. In addition, we outline the requirement for aminergic activation to induce late LTP and consider the functional implications of the synaptic tag hypothesis with respect to long-term memory.

Integrity signals

Registry

Crossref · 10.1016/s0166-2236(97)01189-2

Cites

70 of 70 references verified0 citation errors · 0 not checkable

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Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • In hippocampal slices, additional potentiation can be induced up to 4 hours after induction of the first LTP increment.

    “Kramár et al.47 noted that in hippocampal slices, additional potentiation can be induced up to 4 hours after induction of the first LTP increment81.”
  • Additional potentiation can be induced four hours after induction of LTP1.

    “Other studies using variable stimulation intensities suggest that additional potentiation can be induced four hours after induction of LTP1 (10, 12).”

    From Synaptic evidence for the efficacy of spaced learning (2012) · cites this paper as [10]

Cites

Flagged first, then by citations

Research works printed but not linked: 2

  1. Matthies, 1989, Annu. Rev., 40, 381
  2. Baulac, 1986, Rev. Neurol., 142, 895

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Authors
Frey, U., & Morris, R. G. M.
Affiliations
  • Leibniz Institute for Neurobiology (DE)
  • University of Edinburgh (GB)
Venue
Trends in Neurosciences
Publisher
Elsevier BV
Published
1998-05
Volume
21
Issue
5
Pages
181-188
ISSN
0166-2236 (ISSN-L)
OpenAlex
W2058053468
Cited by
615
References
70
Citations by year
2026: 12 · 2025: 14 · 2024: 35 · 2023: 35 · 2022: 13 · 2021: 12 · 2020: 14 · 2019: 17 · 2018: 24 · 2017: 22 · 2016: 22 · 2015: 18 · 2014: 31 · 2013: 24 · 2012: 19
FWCI
1.62
Type
journal article
Language
en
Open access
closed
Locations
  • Trends in Neurosciences (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
Keywords
synaptic tagging, hippocampal long-term potentiation, synaptic plasticity, long-term memory, information storage
MeSH terms
Animals, Biogenic Amines, Hippocampus, Humans, Models, Neurological, Nerve Tissue Proteins, Neuronal Plasticity, Synapses, Long-Term Potentiation

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