Evidence map›Paper›PMID 30091004›Full record

ReviewPsychopharmacology2019

Vagus nerve stimulation as a tool for enhancing extinction in exposure-based therapies.

Lindsey J Noble, Rimenez R Souza, Christa K McIntyre

Abstract readReview
In one paragraph

Review in Psychopharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

25 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. A Systematic Review of Noninvasive Brain Stimulation for Opioid Use Disorder.Neuromodulation : journal of the International Neuromodulation Society · 2020
    Pooled it
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  17. Stress and the "extended" autonomic system.Autonomic neuroscience : basic & clinical · 2021
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Lindsey J NobleSchool of Behavioral Brain Sciences, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
Rimenez R SouzaSchool of Behavioral Brain Sciences, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA.
Christa K McIntyreSchool of Behavioral Brain Sciences, The University of Texas at Dallas, 800 West Campbell Road, Richardson, TX, 75080, USA. christa.mcintyre@utdallas.edu.ORCID http://orcid.org/0000-0002-8138-5023

Funding

Neural Pathways Modulating Memory ConsolidationR01MH104384 · NIMH · UNIVERSITY OF IOWA · PI LALUMIERE, RYAN T, MCINTYRE, CHRISTA · 2015 to 2019
$1.9M
An adjunct to prolonged exposure therapy for treating refractory PTSD patientsR43MH105014 · NIMH · MICROTRANSPONDER, INC. · PI ENGINEER, NAVZER, MCINTYRE, CHRISTA · 2016 to 2016
$224k
Defense Advanced Research Projects Agency N66001-15-2-4057National Institute of Mental Health MH105014NIMH NIH HHS R01 MH104384NIMH NIH HHS R43 MH105014
6 · The paper itself

Abstract

rationaleEmotionally traumatic experiences can lead to maladaptive memories that are enduring and intrusive. The goal of exposure-based therapies is to extinguish conditioned fears through repeated, unreinforced exposures to reminders of traumatic events. The extinction of conditioned fear depends upon the consolidation of new memories made during exposure to reminders. An impairment in extinction recall, observed in certain patient populations, can interfere with progress in exposure-based therapies, and the drive to avoid thoughts and reminders of the trauma can undermine compliance and increase dropout rate. Effective adjuncts to exposure-based therapies should improve the consolidation and maintenance of the extinction memory or improve the tolerability of the therapy. Under stressful conditions, the vagus nerve responds to elevations in epinephrine and signals the brain to facilitate the storage of new memories while, as part of the parasympathetic nervous system, it slows the sympathetic response.

objectiveHere, we review studies relevant to fear extinction, describing the anatomical and functional characteristics of the vagus nerve and mechanisms of vagus nerve stimulation (VNS)-induced memory enhancement and plasticity.

resultsWe propose that stimulation of the left cervical vagus nerve during exposure to conditioned cues signals the brain to store new memories just as epinephrine or emotional arousal would do, but bypasses the peripheral sympathetic "fight-or-flight" response.

conclusionsIn support of this hypothesis, we have found that VNS accelerates extinction and prevents reinstatement of conditioned fear in rats. Finally, we propose future studies targeting the optimization of stimulation parameters and the search for biomarkers of VNS effectiveness that may improve exposure therapy outcomes.

Indexed as

AnimalsArousalBrainCombined Modality TherapyConditioning, ClassicalEpinephrineExtinction, PsychologicalFearHumansImplosive TherapyMemoryParasympathetic Nervous SystemRatsReceptors, N-Methyl-D-AspartateStress Disorders, Post-TraumaticSympathetic Nervous SystemEpinephrineReceptors, N-Methyl-D-AspartateAnxietyExtinctionFearPosttraumatic stress disorderVagus nerve stimulation

Identifiers

PMID30091004
PMCPMC6368475

What OpenQuestion holds

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.