Cited by 178Memory Processes and InfluencesMemory and Neural MechanismsChild and Animal Learning Development

Episodic-like memory in pigeons

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Zentall, Thomas R., Clement, Tricia S., Bhatt, Ramesh S., Allen, Jessica·2001·Psychonomic Bulletin & Review

Abstract

It has been proposed that memory for personal experiences (episodic memory, rather than semantic memory) relies on the conscious review of past experience and thus is unique to humans. In an attempt to demonstrate episodic-like memory in animals, we first trained pigeons to respond to the (nonverbal) question "Did you just peck or did you just refrain from pecking?" by training them on a symbolic matching task with differential responding required to the two line-orientation samples and reinforcing the choice of a red comparison if they had pecked and the choice of a green comparison if they had not pecked. Then, in Experiment 1, after providing the conditions for (but not requiring) the pigeons to peck at one new stimulus (a yellow hue) but not at another (a blue hue), we tested them with the new hue stimuli and the red and green comparisons. In Experiment 2, we tested the pigeons with novel stimuli (a circle, which they spontaneously pecked, and a dark response key, which they did not peck) and the red and green comparisons. In both experiments, pigeons chose the comparison appropriate to the response made to the test stimulus. Thus, the pigeons demonstrated that they could remember specific details about their past experiences, a result consistent with the notion that they have the capacity for forming episodic-like memories.

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  • 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 [79]

  • When information is encoded incidentally and subsequently tested in an unexpected memory assessment, the transformation of this information into a preselected future action is impossible.

    “By contrast, when information is encoded incidentally and subsequently tested in an unexpected memory assessment, the transformation of this information into a preselected future action is impossible [79,82,85,90]”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [79]

  • The effect of age was not apparent in the standard what-where-when task, leading authors to conclude that non-episodic solutions are possible in what-where-when tasks.

    “Interestingly, this effect was not apparent in the standard what–where–when task, leading the authors to conclude that non-episodic solutions are possible in what–where–when tasks, as suggested by others [79,85].”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [79]

  • The incidental encoding and unexpected question paradigm directly represents the automatic encoding feature of episodic memory.

    “Furthermore, the incidental encoding and unexpected question paradigm, also by design, directly represents the automatic encoding feature of episodic memory [79].”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [79]

  • Some studies use non-natural methodological elements to test for episodic-like memory, such as pecking or approaching shapes or coloured panels, or requiring subjects to recall their own or others' previous actions out of an array of behaviours.

    “Some studies, however, use non-natural methodological elements to test for episodic-like memory [75], such as pecking or approaching certain shapes or coloured panels that are presented in front of the subjects [56,78–81], or requiring subjects to recall their own or others’ previous actions out of an array of behaviours [95,96].”

    From Is episodic-like memory <i>like</i> episodic memory? (2024) · cites this paper as [79]

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Research works printed but not linked: 1

  1. Wilkie, D. M., & Ramer, D. G. (1974). Errorless discrimination es- tablished by differential autoshaping. Journal of the Experimental Analysis of Behavior, 22, 333-340.

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Authors
Zentall, T. R., Clement, T. S., Bhatt, R. S., & Allen, J.
Affiliations
University of Kentucky (US)
Corresponding author
Zentall, Thomas R.
Venue
Psychonomic Bulletin & Review
Published
2001-12
Volume
8
Issue
4
Pages
685-690
ISSN
  • 1069-9384 (ISSN-L)
  • 1531-5320
OpenAlex
W1989109048
Cited by
178
References
22
Citations by year
2026: 3 · 2025: 4 · 2024: 11 · 2023: 5 · 2022: 10 · 2021: 8 · 2020: 5 · 2019: 9 · 2018: 6 · 2017: 11 · 2016: 7 · 2015: 6 · 2014: 9 · 2013: 7 · 2012: 13
FWCI
1.22
Type
journal article
Language
en
Open access
Locations
  • Psychonomic Bulletin & Review (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5r01mh059194-03)
  • National Institute of Mental Health (MH-59194)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Social Sciences › Psychology › Developmental and Educational Psychology › Child and Animal Learning Development
Keywords
episodic-like memory, pigeons, animal memory, semantic memory, novel stimuli, avian cognition
MeSH terms
Animals, Behavior, Animal, Memory, Short-Term, Columbidae, Teaching

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