Cited by 429Memory and Neural MechanismsNeuroscience and Neuropharmacology ResearchMemory Processes and Influences

Neural and cellular mechanisms of fear and extinction memory formation

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Orsini, Caitlin A., Maren, Stephen·2012·Neuroscience & Biobehavioral Reviews

Abstract

Over the course of natural history, countless animal species have evolved adaptive behavioral systems to cope with dangerous situations and promote survival. Emotional memories are central to these defense systems because they are rapidly acquired and prepare organisms for future threat. Unfortunately, the persistence and intrusion of memories of fearful experiences are quite common and can lead to pathogenic conditions, such as anxiety and phobias. Over the course of the last 30 years, neuroscientists and psychologists alike have attempted to understand the mechanisms by which the brain encodes and maintains these aversive memories. Of equal interest, though, is the neurobiology of extinction memory formation as this may shape current therapeutic techniques. Here we review the extant literature on the neurobiology of fear and extinction memory formation, with a strong focus on the cellular and molecular mechanisms underlying these processes.

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Crossref · 10.1016/j.neubiorev.2011.12.014

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  • The BLA is a critical node within the neural circuitry subserving learned fear behaviors.

    “In addition to being a major target and modulator of stress, the BLA is a critical node within the neural circuitry subserving learned fear behaviors.”
  • The BLA is activated during the formation, expression, and extinction of conditioned fear memories, and damage to the BLA disrupts one or more of these processes.

    “The BLA is activated during the formation, expression, and extinction of conditioned fear memories, and damage to the BLA disrupts one or more of these processes [79,80].”

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  1. Kluver, Bucy PC "Psychic blindness" and other symotoms following bilateral temporal lobectomy in rhesus monkeys American Journal of Physiology 1937 119 352 353

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Authors
Orsini, C. A., & Maren, S.
Affiliations
University of Michigan (US)
Corresponding author
  • Orsini, Caitlin A.
  • Maren, Stephen
Venue
Neuroscience & Biobehavioral Reviews
Publisher
Elsevier BV
Published
2012-08
Volume
36
Issue
7
Pages
1773-1802
ISSN
0149-7634 (ISSN-L)
OpenAlex
W1988353820
Cited by
429
References
492
Citations by year
2026: 15 · 2025: 26 · 2024: 30 · 2023: 20 · 2022: 32 · 2021: 27 · 2020: 29 · 2019: 34 · 2018: 36 · 2017: 26 · 2016: 38 · 2015: 34 · 2014: 35 · 2013: 35 · 2012: 12
FWCI
2.94
Type
journal article
Language
en
Open access
Locations
  • Neuroscience & Biobehavioral Reviews (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (F31MH091822, R01MH065961)
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, memory extinction, memory formation, amygdala, hippocampus, long-term potentiation, synaptic plasticity, intracellular signaling cascades, prefrontal cortex, post-traumatic stress disorder, anxiety, phobia, emotional memory
MeSH terms
Animals, Anxiety, Brain, Extinction, Psychological, Fear, Humans, Memory, Neuronal Plasticity

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