Cited by 25Memory and Neural MechanismsMemory Processes and InfluencesStress Responses and Cortisol

The effects of post-encoding stress and glucocorticoids on episodic memory in humans and rodents

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Sazma, Matthew A., Shields, Grant S., Yonelinas, Andrew P.·2019·Brain and Cognition

Abstract

It is now well established that acute stress shortly after encoding (i.e., post-encoding stress) can benefit episodic memory. In the current paper, we briefly review the human literature examining the effects of post-encoding stress on episodic memory, and we relate that literature to studies of post-encoding manipulations of cortisol in humans, as well as studies of post-encoding stress and administration of corticosterone on analogous memory tasks in rodents. An examination of the literature reveals several important gaps in our understanding of stress and memory. For example, although the human literature shows that post-encoding stress generally improves memory, these effects are not observed if stress occurs in a different context from learning. Moreover, the rodent literature shows that post-encoding stress generally impairs memory instead of improving it, and these effects depend on whether the animal is habituated to the learning context prior to encoding. Although many aspects of the results support a cellular consolidation account of post-encoding stress, we present possible modifications, such as a network reset, to better account for the data. We also suggest that it is important to incorporate ideas of contextual binding in order to understanding the effects of post-encoding stress and glucocorticoids on memory.

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Crossref · 10.1016/j.bandc.2018.10.005

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  • In humans, enhancing effects of post-encoding stress on memory consolidation were only found when the stressor was administered in the same context as during encoding, and in rats detrimental effects of post-encoding stressors on memory prevailed, arguing against the view that stress as an internal state and independent of its external origin modulates wake consolidation.

    “In humans, enhancing effects of post-encoding stress on memory consolidation were only found when the stressor was administered in the same context as during encoding, and in rats detrimental effects of post-encoding stressors on memory prevailed, 282 arguing against the view that stress as an internal state and independent of its external origin modulates wake consolidation.”

    From Sleep—A brain-state serving systems memory consolidation (2023) · cites this paper as [282]

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Authors
Sazma, M. A., Shields, G. S., & Yonelinas, A. P.
Affiliations
University of California, Davis (US)
Corresponding author
Sazma, Matthew A.
Venue
Brain and Cognition
Publisher
Elsevier BV
Published
2019-07
Volume
133
Pages
12-23
ISSN
0278-2626 (ISSN-L)
OpenAlex
W2898442928
Cited by
25
References
85
Citations by year
2026: 3 · 2025: 2 · 2024: 3 · 2023: 4 · 2022: 4 · 2021: 4 · 2020: 3 · 2019: 2
FWCI
0.30
Type
journal article
Language
en
Open access
Locations
  • Brain and Cognition (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Eye Institute (R01EY025999)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
Keywords
episodic memory, glucocorticoids, cortisol, corticosterone, memory consolidation, habituation, stress and memory, rodents, human
MeSH terms
Animals, Glucocorticoids, Humans, Hydrocortisone, Rodentia, Stress, Psychological, Memory, Episodic

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