Cited by 60Memory and Neural MechanismsMemory Processes and InfluencesCognitive Functions and Memory

Validation of a rodent model of episodic memory

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Zhou, Wenyi, Crystal, Jonathon D.·2011·Animal Cognition

Abstract

Episodic memory consists of representations of specific episodes that happened in the past. Modeling episodic memory in animals requires careful examination of alternative explanations of performance. Putative evidence of episodic-like memory may be based on encoding failure or expectations derived from well-learned semantic rules. In Experiment 1, rats were tested in a radial maze with study and test phases separated by a retention interval. The replenishment of chocolate (at its study-phase location) depended on two factors: time of day (morning vs. afternoon) and the presence or absence of chocolate pellets at the start of the test phase. Because replenishment could not be decoded until the test phase, rats were required to encode the study episode. Success in this task rules out encoding failure. In Experiment 2, two identical mazes in different rooms were used. Chocolate replenishment was trained in one room, and then they were asked to report about a recent event in a different room, where they had no expectation that the memory assessment would occur. Rats successfully answered the unexpected question, ruling out use of expectations derived from well-learned semantic rules. Our behavioral methods for modeling episodic memory may have broad application for assessments of genetic, neuroanatomical, neurochemical, and neurophysiological bases of both episodic memory and memory disorders such as those that occur in Alzheimer's disease.

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  • Studies using the what-where-when paradigm predominantly focus on the content criterion, and there is little evidence for the structure and flexibility criteria in the literature.

    “these predominantly focus on the content criterion, and as a result, there is little evidence for the structure (but see [68,75]) and flexibility (but see [74]) criteria in the literature.”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [74]

  • Training animals to explicitly encode and report information in an anticipated memory test may result in the application of non-episodic mechanisms to solve these tasks.

    “That said, training animals to explicitly encode and report information in an anticipated memory test, as is required for what–where–when memory experiments, may result in the application of non-episodic mechanisms to solve these tasks [74,79–84].”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [74]

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  1. Shettleworth SJ 1998 Cognition, evolutoin, and behavior Oxford University Press New York

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Authors
Zhou, W., & Crystal, J. D.
Affiliations
University of Georgia (US)
Corresponding author
Crystal, Jonathon D.
Venue
Animal Cognition
Published
2010-12-17
Volume
14
Issue
3
Pages
325-340
ISSN
  • 1435-9448 (ISSN-L)
  • 1435-9456
OpenAlex
W2148509289
Cited by
60
References
69
Citations by year
2026: 1 · 2025: 2 · 2024: 7 · 2023: 4 · 2022: 10 · 2021: 2 · 2020: 5 · 2019: 2 · 2018: 1 · 2017: 1 · 2016: 3 · 2015: 3 · 2014: 3 · 2013: 10 · 2012: 4
FWCI
3.09
Type
journal article
Language
en
Open access
Locations
  • Animal Cognition (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (R01MH080052)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Functions and Memory
Keywords
episodic memory, episodic-like memory, rodent models, rats, radial maze, semantic rules, memory retrieval, retention interval, memory disorders, Alzheimer's disease
MeSH terms
Animals, Male, Models, Psychological, Mental Recall, Reward, Maze Learning, Rats, Long-Evans, Rats, Memory, Long-Term

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