Cited by 154Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchNeural dynamics and brain function

A post-tetanic time window for the reinforcement of long-term potentiation by appetitive and aversive stimuli

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Seidenbecher, Thomas, Reymann, Klaus G., Balschun, Detlef·1997·Proceedings of the National Academy of Sciences

Abstract

Current theories on the encoding and storage of information in the brain commonly suppose that a short-term memory is converted into a lasting one; thus, it becomes consolidated over time. Within a finite period after training, such a short-term memory can be reinforced by behavioral and humoral stimuli. We have found that, long-term potentiation (LTP), a likely candidate for a memory-encoding mechanism at the cellular level, displays similar features. LTP in the dentate gyrus of freely moving rats was reinforced after its induction by appetitive and aversive stimuli. The efficacy of these stimuli terminates about 1 h after tetanization, which may reflect the time constants of the mechanisms underlying the consolidation that takes place. The reinforcement by appetitive and aversive stimulation was blocked by the β-adrenergic antagonist propranolol, implicating norepinephrine in the underlying cellular processes.

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Crossref · 10.1073/pnas.94.4.1494

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Authors
Seidenbecher, T., Reymann, K. G., & Balschun, D.
Affiliations
Leibniz Institute for Neurobiology (DE)
Venue
Proceedings of the National Academy of Sciences
Published
1997-02-18
Volume
94
Issue
4
Pages
1494-1499
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W1974502920
Cited by
154
References
35
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 2 · 2022: 4 · 2021: 5 · 2020: 2 · 2019: 4 · 2018: 3 · 2017: 6 · 2016: 4 · 2015: 4 · 2014: 5 · 2013: 6 · 2012: 3
FWCI
2.95
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (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 › Neural dynamics and brain function
Keywords
long-term potentiation, post-tetanic potentiation, memory consolidation, dentate gyrus, appetitive stimuli, aversive stimuli, norepinephrine, beta-adrenergic blockade, propranolol, short-term memory, synaptic plasticity
MeSH terms
Adrenergic beta-Antagonists, Animals, Appetitive Behavior, Male, Memory, Memory, Short-Term, Propranolol, Punishment, Reinforcement, Psychology, Reward, Tetany, Time Factors, Rats, Wistar, Long-Term Potentiation, Dentate Gyrus, Rats

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