Cited by 198Memory and Neural MechanismsNeurotransmitter Receptor Influence on BehaviorNeuroscience and Neuropharmacology Research

Active Avoidance Requires a Serial Basal Amygdala to Nucleus Accumbens Shell Circuit

Open access
Ramirez, Franchesca, Moscarello, Justin M., LeDoux, Joseph E., Sears, Robert M.·2015·The Journal of Neuroscience

Abstract

Freezing is a species-typical defensive reaction to conditioned threats. While the neural circuitry of aversive Pavlovian behavior has been extensively studied, less is known about the circuitry underlying more active responses to danger. Here we show that the flow of information between the basal amygdala (BA) and the nucleus accumbens (NAcc) is necessary for signaled active avoidance behavior. Rats trained to avoid shock by shuttling during an auditory conditioned stimulus showed increased expression of the activity-dependent protein c-Fos in the NAcc, specifically the shell subregion (NAccSh). Silencing neural activity in the NAccSh, but not in the adjacent NAcc core, disrupted avoidance behavior. Disconnection of the BA and the NAccSh was just as effective at disrupting avoidance behavior as bilateral NAccSh inactivations, suggesting learned avoidance behavior requires an intact BA-NAccSh circuit. Together, these data highlight an essential role for the amygdalar projection to the ventral striatum in aversively motivated actions.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1523/jneurosci.1331-14.2015

Cites

59 of 59 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • The vmPFC toggles between amygdala output paths, shifting information flow to promote aversively motivated action instead of Pavlovian freezing responses.

    “The vmPFC is proposed to toggle between these different output paths of the amygdala, shifting the flow of information to promote aversively motivated action instead of Pavlovian freezing responses (Moscarello and LeDoux, 2013; Ramirez et al., 2015).”

    From Active avoidance: Neural mechanisms and attenuation of pavlovian conditioned responding (2017) · cites this paper as Ramirez et al., 2015

    The Discussion (page not provided) describes separate amygdala outputs for freezing and avoidance and suggests a mechanism that toggles between these behaviors. It also proposes that infralimbic prefrontal cortex could suppress freezing, but does not specifically say that it toggles information flow between the two amygdala output paths. (LLM, conf=0.83)

    Experimental — accuracy not yet measured
  • The lateral nucleus projects to the basal nucleus of the amygdala, which projects to the striatum, and these connections are essential for avoidance learning.

    “The lateral nucleus also projects to the basal nucleus of the amygdala, which projects to the striatum. These connections are essential for avoidance learning (Amorapanth et al., 2000; Ramirez et al., 2015).”

    From Active avoidance: Neural mechanisms and attenuation of pavlovian conditioned responding (2017) · cites this paper as Ramirez et al., 2015

    The Introduction describes information passing from the lateral to the basal amygdala and identifies a basal-amygdala projection to the nucleus accumbens, a region of the ventral striatum. The Results section, “Disconnection of NAccSh and BA during SigAA impairs avoidance responding,” finds that the basal-amygdala–accumbens-shell circuit is required for the expression of learned avoidance behavior in rats. It does not establish that both connections are essential for avoidance learning itself. (LLM, conf=0.86)

    Experimental — accuracy not yet measured
  • Instrumental control over threat involves the amygdala, striatum, and ventromedial prefrontal cortex in rodents.

    “Instrumental control over threat has been shown to involve the amygdala, striatum, and ventromedial prefrontal cortex (vmPFC) in rodents.”
  • The basal nucleus of the amygdala is engaged during avoidance learning and may transfer information about CS-US association to the striatum.

    “However, the basal nucleus of the amygdala is engaged during avoidance learning and may transfer information about CS-US association to the striatum (Amorapanth et al., 2000; Ramirez et al., 2015).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Research works printed but not linked: 1

  1. Paxinos G, Watson C (2007) The rat brain in sterotaxic coordinates, Ed 3. Amsterdam: Elsevier.

Cited by

Sorted by citations

Authors
Ramirez, F., Moscarello, J. M., LeDoux, J. E., & Sears, R. M.
Affiliations
  • New York University (US)
  • Nathan Kline Institute for Psychiatric Research (US)
Venue
The Journal of Neuroscience
Published
2015-02-25
Volume
35
Issue
8
Pages
3470-3477
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2091209465
Cited by
198
References
58
Citations by year
2026: 14 · 2025: 14 · 2024: 16 · 2023: 18 · 2022: 15 · 2021: 25 · 2020: 21 · 2019: 25 · 2018: 17 · 2017: 14 · 2016: 11 · 2015: 8
FWCI
10.02
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Digital Access to Scholarship at Harvard (DASH) (Harvard University) (submittedVersion, cc-by)
Funders
  • National Science Foundation (0920153)
  • National Institute of Mental Health (R01 MH38774, R01MH038774, MH38774)
  • National Institute on Drug Abuse (R01DA029053, R56DA029053)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
active avoidance, basal amygdala, nucleus accumbens shell, freezing behavior, auditory conditioned stimulus, shock avoidance, neural circuits, Fos expression, ventral striatum, neural silencing, circuit disconnection
MeSH terms
Amygdala, Animals, Avoidance Learning, Conditioning, Classical, Fear, Male, Neural Pathways, Nucleus Accumbens, Proto-Oncogene Proteins c-fos, Rats, Sprague-Dawley, Rats

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review