Cited by 447Memory and Neural MechanismsStress Responses and CortisolNeuroscience and Neuropharmacology Research

Experience-dependent facilitating effect of corticosterone on spatial memory formation in the water maze

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Sandi, Carmen, Loscertales, Maria, Guaza, Carmen·1997·European Journal of Neuroscience

Abstract

Stress-related adrenal steroid hormones modulate brain and cognitive function. Electrophysiological studies, including primed burst potentiation and long-term potentiation, have indicated concentration-dependent inverted U-shape effects of corticosterone in hippocampal function and plasticity. Here, we explored the role of corticosterone in the consolidation and long-term retrieval of spatial learning in the Morris water maze task in rats. We postulated that corticosterone actions might be experience-dependent with regard to stimulus intensity, such as differential water temperatures. Indeed, rats trained at 19 degrees C showed a quicker rate of acquisition and better long-term retention than rats trained at 25 degrees C water. In addition, post-training corticosterone levels, on the first training day, were significantly higher in rats in the 19 degrees C group than in the 25 degrees C group. Performance of rats trained at 25 degrees C, but not at 19 degrees C, water was improved by injecting them i.p. with corticosterone immediately after each training session. Thus, the effect of exogenously administered corticosterone appears to be experience-dependent, with the experience-induced corticosterone concentrations as a critical factor determining the cognitive consequences of steroid treatment. Therefore, this work indicates a facilitating corticosterone action, during the post-training period, on the neural mechanisms determining the strength of information storage under acute, physiological conditions.

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Registry

Crossref · 10.1111/j.1460-9568.1997.tb01412.x

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31 of 31 references verified0 citation errors · 0 not checkable

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  • A weak stimulus that produces a negligible phase 1 response, as well as a weak hormonal response, would produce minimal activation of endogenous hippocampal plasticity, and thereby result in poor memory.

    “A weak stimulus that produces a negligible phase 1 response, as well as a weak hormonal response, would produce minimal activation of endogenous hippocampal plasticity, and thereby result in poor memory (Sandi et al. [79]).”
  • The use of exogenous corticosteroids is not always associated with deleterious effects on cognition; some studies in animals and humans have failed to demonstrate an association, while some provide evidence of corticosteroid-induced cognitive enhancement.

    “Furthermore, the use of exogenous corticosteroids is not always associated with deleterious effects on cognition, and some studies in animals and humans have failed to demonstrate an association, while some provide evidence of corticosteroid-induced cognitive enhancement (438–443).”

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Authors
Sandi, C., Loscertales, M., & Guaza, C.
Affiliations
Instituto Cajal (ES)
Corresponding author
Sandi, Carmen
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
1997-04
Volume
9
Issue
4
Pages
637-642
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2101333441
Cited by
447
References
31
Citations by year
2026: 2 · 2025: 3 · 2024: 16 · 2023: 8 · 2022: 10 · 2021: 9 · 2020: 16 · 2019: 10 · 2018: 11 · 2017: 14 · 2016: 22 · 2015: 13 · 2014: 20 · 2013: 26 · 2012: 14
FWCI
7.48
Type
journal article
Language
en
Open access
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • DIGITAL.CSIC (Spanish National Research Council (CSIC)) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion)
  • Infoscience (Ecole Polytechnique Fédérale de Lausanne) (submittedVersion, cc-by-nc-nd)
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
corticosterone, spatial memory, memory consolidation, Morris water maze, stress hormones, water temperature, hippocampus, long-term potentiation, memory retrieval
MeSH terms
Analysis of Variance, Animals, Cognition, Corticosterone, Male, Memory, Neuronal Plasticity, Space Perception, Temperature, Time Factors, Rats, Wistar, Long-Term Potentiation, Maze Learning, Rats

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