Cited by 366Memory and Neural MechanismsMemory Processes and InfluencesNeuroscience and Neuropharmacology Research

Conscious and Unconscious Memory Systems

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Squire, Larry R., Dede, Adam J.O.·2015·Cold Spring Harbor Perspectives in Biology

Abstract

The idea that memory is not a single mental faculty has a long and interesting history but became a topic of experimental and biologic inquiry only in the mid-20th century. It is now clear that there are different kinds of memory, which are supported by different brain systems. One major distinction can be drawn between working memory and long-term memory. Long-term memory can be separated into declarative (explicit) memory and a collection of nondeclarative (implicit) forms of memory that include habits, skills, priming, and simple forms of conditioning. These memory systems depend variously on the hippocampus and related structures in the parahippocampal gyrus, as well as on the amygdala, the striatum, cerebellum, and the neocortex. This work recounts the discovery of declarative and nondeclarative memory and then describes the nature of declarative memory, working memory, nondeclarative memory, and the relationship between memory systems.

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  • Memory is not a unitary phenomenon but involves a number of somewhat independent processes.

    “It is important to note that memory is not a unitary phenomenon, but instead involves a number of somewhat independent processes [7].”

    From Cognitive Dysfunction in Obsessive-Compulsive Disorder (2016) · cites this paper as [7]

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Research works printed but not linked: 5

  1. Bruner JS. 1969. Modalities of memory. In The pathology of memory (ed. Talland GA, et al.). pp. 253-259. Academic, New York.
  2. Milner B. 1962. Les troubles de la memoire accompagnant des le ´sions hippocampiques bilaterales. In Physiologie de l'hippocampe, pp. 257-272. Centre National de la Re- cherche Scientifique, Paris.
  3. Mishkin M, Malamut B, Bachevalier J. 1984. Memories and habits: Two neural systems. In Neurobiology of learning and memory (ed. Lynch G, et al.), pp. 65-77. Guilford, New York.
  4. Shimamura AP, Janowsky JS, Squire LR. 1991. What is the role of frontal lobe damage in memory disorders? In Frontal lobe functioning and dysfunction (ed. Levin HD, et al.), pp. 173 -195. Oxford University Press, New York.
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Authors
Squire, L. R., & Dede, A. J. O.
Affiliations
University of California San Diego (US)
Venue
Cold Spring Harbor Perspectives in Biology
Published
2015-03
Volume
7
Issue
3
Pages
a021667
ISSN
1943-0264 (ISSN-L)
OpenAlex
W2150596589
Cited by
366
References
152
Citations by year
2026: 30 · 2025: 27 · 2024: 36 · 2023: 39 · 2022: 43 · 2021: 50 · 2020: 33 · 2019: 35 · 2018: 19 · 2017: 31 · 2016: 14 · 2015: 9
Type
posted content
Language
en
Open access
Locations
  • Cold Spring Harbor Perspectives in Biology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
memory systems, working memory, long-term memory, declarative memory, implicit memory, hippocampus, parahippocampal gyrus, amygdala, striatum, cerebellum, neocortex, priming, conditioning, habit, skill acquisition, history of memory research
MeSH terms
Brain, Consciousness, Humans, Memory, Short-Term, Models, Neurological, Unconscious, Psychology, Memory, Long-Term

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