Evidence map›Paper›PMID 36192564›Full record

ArticleScientific reports2022

Timing of vagus nerve stimulation during fear extinction determines efficacy in a rat model of PTSD.

Rimenez R Souza, Mark B Powers, Robert L Rennaker, Christa K McIntyre, Seth A Hays, Michael P Kilgard

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
1.7field-weighted citation impact, top 15% of its field
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

14 citing papers in PubMed, 23 citations in OpenAlex.

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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

6 authors at 3 institutions in 1 country.

Rimenez R SouzaTexas Biomedical Device Center, The University of Texas at Dallas, Richardson, TX, 75080, USA. rimenez@utdallas.edu.
Mark B PowersBaylor University Medical Center, Dallas, TX, 75246, USA.
Robert L RennakerTexas Biomedical Device Center, The University of Texas at Dallas, Richardson, TX, 75080, USA.
Christa K McIntyreTexas Biomedical Device Center, The University of Texas at Dallas, Richardson, TX, 75080, USA.
Seth A HaysTexas Biomedical Device Center, The University of Texas at Dallas, Richardson, TX, 75080, USA.
Michael P KilgardTexas Biomedical Device Center, The University of Texas at Dallas, Richardson, TX, 75080, USA.
The University of Texas at Dallas · USTexas Biomedical Research Institute · USBaylor University Medical Center · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Studies have indicated that vagus nerve stimulation (VNS) enhances extinction learning in rodent models. Here, we investigated if pairing VNS with the conditioned stimulus is required for the enhancing effects of VNS. Adult Sprague-Dawley rats were exposed to intense stress followed by fear conditioning training to produce resistant fear. Rats were then implanted with a cuff electrode around the left vagus. After recovery, rats underwent extinction training paired with VNS (0.5 s, 0.8 mA, 100 µs, and 30 Hz) or with Sham VNS (0 mA). VNS rats were randomized into the following subgroups: During VNS (delivered during presentations of the conditioned stimulus, CS), Between VNS (delivered between CS presentations), Continuous VNS (delivered during the entire extinction session), and Dispersed VNS (delivered at longer inter-stimulation intervals across the extinction session). Sham VNS rats failed to extinguish the conditioned fear response over 5 days of repeated exposure to the CS. Rats that received Between or Dispersed VNS showed modest improvement in conditioned fear at the retention test. During and Continuous VNS groups displayed the greatest reduction in conditioned fear. These findings indicate that delivering VNS paired precisely with CS presentations or continuously throughout extinction promotes the maximum enhancement in extinction learning.

Indexed as

Stress Disorders, Post-TraumaticVagus Nerve StimulationAnimalsExtinction, PsychologicalFearRatsRats, Sprague-DawleyVagus Nerve

Identifiers

PMID36192564
PMCPMC9530175
OpenAlexW4300864920

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

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.