Cited by 751Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

Amygdala Microcircuits Controlling Learned Fear

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Duvarci, Sevil, Pare, Denis·2014·Neuron

Abstract

We review recent work on the role of intrinsic amygdala networks in the regulation of classically conditioned defensive behaviors, commonly known as conditioned fear. These new developments highlight how conditioned fear depends on far more complex networks than initially envisioned. Indeed, multiple parallel inhibitory and excitatory circuits are differentially recruited during the expression versus extinction of conditioned fear. Moreover, shifts between expression and extinction circuits involve coordinated interactions with different regions of the medial prefrontal cortex. However, key areas of uncertainty remain, particularly with respect to the connectivity of the different cell types. Filling these gaps in our knowledge is important because much evidence indicates that human anxiety disorders results from an abnormal regulation of the networks supporting fear learning.

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Crossref · 10.1016/j.neuron.2014.04.042

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  • In fear- or anxiety-provoking circumstances, projections from the BLA targeting the central amygdala and the BNST are activated.

    “in fear- or anxiety-provoking circumstances, projections from the BLA targeting the central amygdala (CeA, containing the lateral (CeL) and medial (CeM) subdivisions)53,64 and the BNST31,65 are activated.”

    From Resolving the neural circuits of anxiety (2015) · cites this paper as [53]

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  1. Pitkanen A Aggleton JP 2000 The connectivity of the rat amygdaloid complex The Amygdala: A Functional Analysis Oxford Oxford University Press 31 116

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Authors
Duvarci, S., & Pare, D.
Affiliations
Goethe University Frankfurt (DE)
Venue
Neuron
Publisher
Elsevier BV
Published
2014-06
Volume
82
Issue
5
Pages
966-980
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1963723820
Cited by
751
References
199
Citations by year
2026: 38 · 2025: 44 · 2024: 62 · 2023: 50 · 2022: 69 · 2021: 81 · 2020: 75 · 2019: 57 · 2018: 82 · 2017: 53 · 2016: 68 · 2015: 58 · 2014: 14
FWCI
6.06
Type
journal article
Language
en
Open access
Locations
  • Neuron (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (MH-098738, R01MH098738, R01MH083710, MH083710)
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 › Neurotransmitter Receptor Influence on Behavior
Keywords
amygdala, fear conditioning, fear extinction, fear expression, inhibitory circuits, medial prefrontal cortex, neural circuits, anxiety disorders, fear learning
MeSH terms
Amygdala, Animals, Conditioning, Classical, Extinction, Psychological, Fear, Humans, Nerve Net, Mice, Rats

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