Cited by 1,428Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchMemory Processes and Influences

Neuronal signalling of fear memory

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Maren, Stephen, Quirk, Gregory J.·2004·Nature Reviews Neuroscience

Abstract

The learning and remembering of fearful events depends on the integrity of the amygdala, but how are fear memories represented in the activity of amygdala neurons? Here, we review recent electrophysiological studies indicating that neurons in the lateral amygdala encode aversive memories during the acquisition and extinction of Pavlovian fear conditioning. Studies that combine unit recording with brain lesions and pharmacological inactivation provide evidence that the lateral amygdala is a crucial locus of fear memory. Extinction of fear memory reduces associative plasticity in the lateral amygdala and involves the hippocampus and prefrontal cortex. Understanding the signalling of aversive memory by amygdala neurons opens new avenues for research into the neural systems that support fear behaviour.

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Crossref · 10.1038/nrn1535

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  • The amygdala has been implicated as a key neural region in emotional dysregulation in psychiatric disorders.

    “The amygdala has been implicated as a key neural region in emotional dysregulation in psychiatric disorders.”

    From <i>The Adolescent Brain</i> (2008) · cites this paper as Maren & Quirk 2004

    The ‘Fear-related plasticity in the lateral amygdala’ section describes the amygdala as necessary for acquiring and expressing Pavlovian fear memories. ‘Fear not: amygdala inhibition after extinction’ links amygdala-dependent fear extinction to treatments for anxiety disorders, including panic disorder and post-traumatic stress. The paper does not establish the broader claim that the amygdala is a key region in emotional dysregulation across psychiatric disorders. Page numbers were unavailable in our copy. (LLM, conf=0.83)

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  • The amygdala is essential to learning the emotional significance of cues in the environment.

    “This region is essential to learning the emotional significance of cues in the environment (see Maren & Quirk 2004 for review).”

    From <i>The Adolescent Brain</i> (2008) · cites this paper as Maren & Quirk 2004

    The section “Fear-related plasticity in the lateral amygdala” says the amygdala is necessary for acquiring Pavlovian fear memories. The claim extends that finding to learning the emotional significance of environmental cues generally, whereas the review focuses on fear conditioning and explicitly notes that the amygdala is not necessary for all forms of aversive memory. The indexed copy provides no page number for this section. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • The basolateral amygdala (BLA) is critical for both reconsolidation and extinction of pavlovian memories.

    “for pavlovian memories the basolateral amygdala (BLA) is critical for both (Maren and Quirk, 2004; Nader, 2015).”

    From Retrieval-Dependent Mechanisms Affecting Emotional Memory Persistence: Reconsolidation, Extinction, and the Space in Between (2020) · cites this paper as Maren and Quirk, 2004

    The section “Fear not: amygdala inhibition after extinction” says the amygdala has a vital role in extinction of learned fear and that disrupting its activity or plasticity impairs extinction. The paper addresses Pavlovian fear conditioning, not Pavlovian memories generally; a search for reconsolidation and memory reactivation found no passage supporting the reconsolidation part of the claim. Page numbers were not available in our copy. (LLM, conf=0.87)

    Experimental — accuracy not yet measured
  • The expression and inhibition of learned fear is largely regulated by the amygdala, hippocampus, and PFC in adult rodents and humans.

    “The expression and inhibition of learned fear is largely regulated by the amygdala, hippocampus, and PFC in adult rodents and humans (Knapska et al., 2012;LeDoux, 2003;Maren and Quirk, 2004;Tovote et al., 2015)”

    From The Microbiota-Gut-Brain Axis (2019) · cites this paper as Maren and Quirk, 2004

    The review describes roles for the amygdala, medial prefrontal cortex, and hippocampus in learned-fear expression and extinction, including rat evidence in the Reviews section and their interaction in the Conclusions (page numbers unavailable). It discusses clinical relevance but does not establish that these three regions regulate learned fear in adult humans; that extension is unsupported by this copy. (LLM, conf=0.85)

    Experimental — accuracy not yet measured
  • Association between a shock-predicting stimulus and shock forms in basolateral amygdala.

    “Briefly, the association between a stimulus predicting shock and the shock forms in basolateral regions of the amygdala.”

    From Learned helplessness at fifty: Insights from neuroscience. (2016) · cites this paper as Maren & Quirk, 2004

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Research works printed but not linked: 1

  1. Davis, M. in The Amygdala (ed. Aggleton, J. P.) 213-288 (Oxford Univ. Press, Oxford, 2000).

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Authors
Maren, S., & Quirk, G. J.
Affiliations
  • University of Michigan (US)
  • Ponce Health Sciences University (PR)
Venue
Nature Reviews Neuroscience
Published
2004-11
Volume
5
Issue
11
Pages
844-852
ISSN
  • 1471-003X (ISSN-L)
  • 1471-0048
OpenAlex
W1967887989
Cited by
1,428
References
109
Citations by year
2026: 32 · 2025: 45 · 2024: 49 · 2023: 41 · 2022: 61 · 2021: 50 · 2020: 96 · 2019: 59 · 2018: 58 · 2017: 70 · 2016: 74 · 2015: 83 · 2014: 76 · 2013: 90 · 2012: 85
FWCI
4.78
Type
journal article
Language
en
Open access
Locations
  • Nature reviews. Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • Deep Blue (University of Michigan) (submittedVersion)
Funders
  • National Institutes of Health
  • National Institute of Mental Health
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory Processes and Influences
Keywords
fear memory, lateral amygdala, fear conditioning, fear extinction, neural coding, aversive memory, associative plasticity, hippocampus, prefrontal cortex
MeSH terms
Amygdala, Animals, Extinction, Psychological, Fear, Humans, Memory, Neural Inhibition, Neuronal Plasticity, Neurons, Signal Transduction

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