Cited by 156Memory and Neural MechanismsStress Responses and CortisolNeurotransmitter Receptor Influence on Behavior

The DOI matches its Crossref record; 43 of the 43 references it cites were found in a registry or an index.

Controllable versus uncontrollable stressors bi-directionally modulate conditioned but not innate fear

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Abstract

Fear conditioning and fear extinction play key roles in the development and treatment of anxiety-related disorders, yet there is little information concerning experiential variables that modulate these processes. Here we examined the impact of exposure to a stressor in a different environment on subsequent fear conditioning and extinction, and whether the degree of behavioral control that the subject has over the stressor is of importance. Rats received a session of either escapable (controllable) tail shock (ES), yoked inescapable (uncontrollable) tail shock (IS), or control treatment (home cage, HC) 7 days before fear conditioning in which a tone and foot shock were paired. Conditioning was measured 24 h later. In a second experiment rats received ES, IS or HC 24 h after contextual fear conditioning. Extinction then occurred every day beginning 7 days later until a criterion was reached. Spontaneous recovery of fear was assessed 14 days after extinction. IS potentiated fear conditioning when given before fear conditioning, and potentiated fear responding during extinction when given after conditioning. Importantly, ES potently interfered with later fear conditioning, decreased fear responding during fear extinction, and prevented spontaneous recovery of fear. Additionally, we examined if the activation of the ventral medial prefrontal cortex (mPFCv) by ES is critical for the protective effects of ES on later fear conditioning. Inactivation of the mPFCv with muscimol at the time of the initial experience with control prevented ES-induced reductions in later contextual and auditory fear conditioning. Finally, we explored if the protective effects of ES extended to an unconditioned fear stimulus, ferret odor. Unlike conditioned fear, prior ES increased the fear response to ferret odor to the same degree as did IS.

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Crossref · 10.1016/j.neuroscience.2007.03.042

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43 of 43 references verified0 citation errors · 0 not checkable

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Metadata

Authors
Baratta, M. V., Christianson, J. P., Gomez, D. M., Zarza, C. M., Amat, J., Masini, C. V., Watkins, L. R., & Maier, S. F.
Affiliations
University of Colorado Boulder (US)
Venue
Neuroscience
Publisher
Elsevier BV
Published
2007-06
Volume
146
Issue
4
Pages
1495-1503
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2078066808
Cited by
156
References
43
Citations by year
2025: 4 · 2024: 9 · 2023: 5 · 2022: 3 · 2021: 5 · 2020: 10 · 2019: 11 · 2018: 8 · 2017: 14 · 2016: 7 · 2015: 9 · 2014: 10 · 2013: 9 · 2012: 7
FWCI
6.01
Type
journal article
Language
en
Open access
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
National Institute of Mental Health (MH050479, R37MH050479, MH 075213, F31MH075213, R01MH050479)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Behavioral Neuroscience › Stress Responses and Cortisol
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
fear conditioning, fear extinction, ventromedial prefrontal cortex, muscimol inactivation, contextual fear, auditory fear, innate fear, anxiety disorders
MeSH terms
Acoustic Stimulation, Analysis of Variance, Animals, Association Learning, Behavior, Animal, Conditioning, Classical, Electroshock, Escape Reaction, Extinction, Psychological, Fear, Helplessness, Learned, Male, Muscimol, Stress, Physiological, Rats, Sprague-Dawley, Prefrontal Cortex, GABA Agonists, Freezing Reaction, Cataleptic, Rats

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