Evidence map›Paper›PMID 17420478›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2007

A cortical potential reflecting cardiac function.

Marcus A Gray, Peter Taggart, Peter M Sutton, David Groves, Diana R Holdright, David Bradbury, David Brull, Hugo D Critchley

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 76 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
76citing papers in PubMed, 1 pooled it
3.6field-weighted citation impact, top 7% 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

76 citing papers in PubMed, 1 synthesis or guideline pooled it, 228 citations in OpenAlex.

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  18. Single neurons in the thalamus and subthalamic nucleus process cardiac and respiratory signals in humans.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  19. Article
  20. Psychological stress, the central nervous system and arrhythmias.QJM : monthly journal of the Association of Physicians · 2023
    Review

16 more citing papers are in PubMed but not listed here.

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

8 authors at 5 institutions in 1 country.

Marcus A GrayFunctional Imaging Laboratory, Wellcome Department of Imaging Neuroscience, Institute of Neurology, University College London, 12 Queen Square, London WC1N 3BG, United Kingdom. M.A.Gray@bsms.ac.uk
Peter Taggart
Peter M Sutton
David Groves
Diana R Holdright
David Bradbury
David Brull
Hugo D Critchley
National Hospital for Neurology and Neurosurgery · GBThe Royal Free Hospital · GBUniversity College London · GBRoyal Liverpool and Broadgreen University Hospital NHS Trust · GBRoyal London Hospital · GB

Funding

Wellcome Trust
6 · The paper itself

Abstract

Emotional trauma and psychological stress can precipitate cardiac arrhythmia and sudden death through arrhythmogenic effects of efferent sympathetic drive. Patients with preexisting heart disease are particularly at risk. Moreover, generation of proarrhythmic activity patterns within cerebral autonomic centers may be amplified by afferent feedback from a dysfunctional myocardium. An electrocortical potential reflecting afferent cardiac information has been described, reflecting individual differences in interoceptive sensitivity (awareness of one's own heartbeats). To inform our understanding of mechanisms underlying arrhythmogenesis, we extended this approach, identifying electrocortical potentials corresponding to the cortical expression of afferent information about the integrity of myocardial function during stress. We measured changes in cardiac response simultaneously with electroencephalography in patients with established ventricular dysfunction. Experimentally induced mental stress enhanced cardiovascular indices of sympathetic activity (systolic blood pressure, heart rate, ventricular ejection fraction, and skin conductance) across all patients. However, the functional response of the myocardium varied; some patients increased, whereas others decreased, cardiac output during stress. Across patients, heartbeat-evoked potential amplitude at left temporal and lateral frontal electrode locations correlated with stress-induced changes in cardiac output, consistent with an afferent cortical representation of myocardial function during stress. Moreover, the amplitude of the heartbeat-evoked potential in the left temporal region reflected the proarrhythmic status of the heart (inhomogeneity of left ventricular repolarization). These observations delineate a cortical representation of cardiac function predictive of proarrhythmic abnormalities in cardiac repolarization. Our findings highlight the dynamic interaction of heart and brain in stress-induced cardiovascular morbidity.

Indexed as

AdultAfferent PathwaysAgedArrhythmias, CardiacCerebral CortexElectrocardiographyElectroencephalographyEvoked PotentialsHeart RateHumansMaleMiddle AgedPrefrontal CortexStress, PsychologicalTemporal Lobe

Identifiers

PMID17420478
PMCPMC1871868
OpenAlexW2045412058

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.