Evidence map›Paper›PMID 29218415›Full record

ArticleExperimental brain research2018

Timing of cortical activation during spontaneous swallowing.

Erin Kamarunas, Rachel Mulheren, Katie Palmore, Christy Ludlow

Abstract read
PubMed Publisher
In one paragraph

Article in Experimental brain research, 2018. 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
0.6field-weighted citation impact, top 29% 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, 24 citations in OpenAlex.

  1. Trial
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  6. Research advances in dysphagia animal models.Animal models and experimental medicine · 2025
    Review
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  11. Review
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  14. Nocturnal swallowing augments arousal intensity and arousal tachycardia.Proceedings of the National Academy of Sciences of the United States of America · 2020
    Article
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

4 authors at 1 institution in 1 country.

Erin KamarunasDepartment of Communication Sciences and Disorders, James Madison University, 235 MLK Jr. Way, MSC 4303, Harrisonburg, VA, 22807, USA. kamaruee@jmu.edu.ORCID 0000-0002-8886-7930
Rachel MulherenDepartment of Communication Sciences and Disorders, James Madison University, 235 MLK Jr. Way, MSC 4303, Harrisonburg, VA, 22807, USA.
Katie PalmoreDepartment of Communication Sciences and Disorders, James Madison University, 235 MLK Jr. Way, MSC 4303, Harrisonburg, VA, 22807, USA.
Christy LudlowDepartment of Communication Sciences and Disorders, James Madison University, 235 MLK Jr. Way, MSC 4303, Harrisonburg, VA, 22807, USA.
James Madison University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Saliva accumulation in the oropharynx generates an automatic pattern of swallowing in the brainstem in animals. Previous fMRI studies have found that spontaneous saliva and water swallows in humans evoked activation following swallow onset in both precentral motor and postcentral somatosensory cortical regions. Using event-related averaging of continuous functional near infrared spectroscopy (fNIRS), we examined cortical hemodynamic responses (HDR) from 5 s before to 35 s after spontaneous reflexive saliva swallow onset in the lateral postcentral somatosensory and precentral motor regions in both hemispheres in healthy volunteers. Three HDR changes from baseline were detected. First, the onset of HDR occurred 2 s before swallow onset in the left postcentral somatosensory area and 0.67 s before swallow onset in the right postcentral somatosensory area. Second, an early HDR peak amplitude occurred 3-4 s after swallow onset in all four regions. Z scores relative to baseline pre-swallow cortical activity levels averaged 20 and 22.7 s in the right and left somatosensory regions and 10 and 15.8 s in left and right motor areas, respectively. Finally, a late HDR peak occurring between 22 and 23 s after swallow onset in the somatosensory regions and 17-19 s in the motor areas likely resulted from esophageal peristalsis. Overall, cortical activation timing relative to swallow onsets showed activation began before the pharyngeal phase of swallowing in the somatosensory areas. This indicates that somatosensory triggering of swallowing occurs not only in the brainstem but also in the cortex for reflexive saliva swallowing in awake humans.

Indexed as

Brain MappingAdultDeglutitionFemaleFunctional LateralityHemoglobinsHumansMaleMiddle AgedMotor CortexReaction TimeSomatosensory CortexSpectroscopy, Near-InfraredTime PerceptionHemoglobinsCortical control swallowingEvent-related averagingFunctional near infrared spectroscopyHemodynamic responseSensory triggers for swallowing

Identifiers

PMID29218415
OpenAlexW2775589556

What OpenQuestion holds

Textmetadata
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.