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Plastic Synaptic Networks of the Amygdala for the Acquisition, Expression, and Extinction of Conditioned Fear

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Pape, Hans-Christian, Pare, Denis·2010·Physiological Reviews

Abstract

The last 10 years have witnessed a surge of interest for the mechanisms underlying the acquisition and extinction of classically conditioned fear responses. In part, this results from the realization that abnormalities in fear learning mechanisms likely participate in the development and/or maintenance of human anxiety disorders. The simplicity and robustness of this learning paradigm, coupled with the fact that the underlying circuitry is evolutionarily well conserved, make it an ideal model to study the basic biology of memory and identify genetic factors and neuronal systems that regulate the normal and pathological expressions of learned fear. Critical advances have been made in determining how modified neuronal functions upon fear acquisition become stabilized during fear memory consolidation and how these processes are controlled in the course of fear memory extinction. With these advances came the realization that activity in remote neuronal networks must be coordinated for these events to take place. In this paper, we review these mechanisms of coordinated network activity and the molecular cascades leading to enduring fear memory, and allowing for their extinction. We will focus on Pavlovian fear conditioning as a model and the amygdala as a key component for the acquisition and extinction of fear responses.

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Crossref · 10.1152/physrev.00037.2009

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  1. [185]Jolkkonen E Pitkänen A Intrinsic connections of the rat amygdaloid complex: Projections originating in the central nucleus J Comp Neurol 395 53 72 1998 9590546
  2. [186]Jones EG The thalamus Cambridge, UK Cambridge University Press 2007
  3. [285]McDonald AJ Cell types and intrinsic connections of the amygdala The amygdala: Neurobiological aspects of emotion, memory, and mental dysfunction Aggleton JP New York Wiley-Liss 1992 67 96
  4. [352]Pape HC Narayanan RT Lesting J Stork O Seidenbecher T Kluge C Sangha S Distinctive patterns of theta synchronization in amygdalo-hippocampal-prefrontal cortical circuits during fear memory consolidation and extinction Soc Neurosci Abstr in press 2009

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Authors
Pape, H.-C., & Pare, D.
Affiliations
  • Rutgers, The State University of New Jersey (US)
  • Institute of Physiology, Westfaelische Wilhelms-University, Muenster, Germany; and Rutgers State University, Newark, New Jersey
Corresponding author
Pape, Hans-Christian
Venue
Physiological Reviews
Published
2010-04
Volume
90
Issue
2
Pages
419-463
ISSN
  • 0031-9333 (ISSN-L)
  • 1522-1210
OpenAlex
W2076445235
Cited by
994
References
554
Citations by year
2026: 19 · 2025: 28 · 2024: 36 · 2023: 43 · 2022: 40 · 2021: 60 · 2020: 58 · 2019: 61 · 2018: 64 · 2017: 63 · 2016: 79 · 2015: 97 · 2014: 88 · 2013: 85 · 2012: 84
FWCI
5.70
Type
journal article
Language
en
Open access
Locations
  • Physiological Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (R01MH073610, R01MH083710)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurobiology and Insect Physiology Research
Keywords
amygdala, fear conditioning, fear extinction, fear memory consolidation, anxiety disorders, synaptic plasticity, neuronal network activity
MeSH terms
Amygdala, Animals, Anxiety, Extinction, Psychological, Fear, Humans, Nerve Net, Neuronal Plasticity

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