Cited by 436Memory and Neural MechanismsStress Responses and CortisolNeuroscience and Neuropharmacology Research

Behavioral stress impairs long-term potentiation in rodent hippocampus

Foy, Michael R., Stanton, Mark E., Levine, Seymour, Thompson, Richard F.·1987·Behavioral and Neural Biology

Abstract

A number of hormones secreted from the pituitary-adrenal system during stress affect learning and memory processes. The phenomenon of hippocampal long-term potentiation (LTP) is viewed by many as a putative mechanism of memory storage and has proved a most valuable model for study of neuronal plasticity at the cellular level. The present study was conducted to investigate the possibility that stressful events which occur prior (in vivo) to the preparation of brain slices may influence the electrophysiology of the in vitro hippocampal explant when tested for LTP. Adult male rats (Long-Evans male X Sprague-Dawley female) were pair-housed 1 week prior to testing. One animal in each pair was either placed in a restraining tube for 30 min and received no tail shocks (Restraint) or placed in a restraining tube and received tail shocks (1 microA, 1 s) every minute for 30 min (Restraint + Shock). The other animal in each pair was taken directly from the home cage and received no restraint or tail shock (Control). In vitro hippocampal slices were then prepared immediately from these animals according to standard methods. Our results demonstrate a marked impairment of LTP in hippocampal explants taken from rats exposed to stress. The significance of this result with respect to cellular mechanisms underlying the relationship between stress, cognition, and learning is discussed.

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Crossref · 10.1016/s0163-1047(87)90664-9

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Authors
Foy, M. R., Stanton, M. E., Levine, S., & Thompson, R. F.
Affiliations
Stanford University (US)
Corresponding author
Foy, Michael R.
Venue
Behavioral and Neural Biology
Publisher
Elsevier BV
Published
1987-07
Volume
48
Issue
1
Pages
138-149
ISSN
0163-1047 (ISSN-L)
OpenAlex
W2021113234
Cited by
436
References
3
Citations by year
2026: 2 · 2025: 4 · 2024: 5 · 2023: 1 · 2022: 6 · 2021: 4 · 2020: 10 · 2019: 14 · 2018: 13 · 2017: 8 · 2016: 4 · 2015: 12 · 2014: 17 · 2013: 14 · 2012: 21
FWCI
2.79
Type
journal article
Language
en
Open access
closed
Locations
  • Behavioral and Neural Biology (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Institute of Mental Health (MH-15147, MH-19936)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
long-term potentiation, hippocampus, stress, restraint stress, tail shock, pituitary-adrenal axis, hippocampal slices, neuroplasticity, memory, learning, stress hormones
MeSH terms
Animals, Cognition, Corticosterone, Electroshock, Female, Hippocampus, Learning, Male, Synaptic Transmission, Neuronal Plasticity, Rats, Inbred Strains, Restraint, Physical, Stress, Psychological, Synapses, Rats

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