Evidence map›Paper›PMID 27557620›Full record

ArticleNeuroImage2017

Phase-amplitude coupling at the organism level: The amplitude of spontaneous alpha rhythm fluctuations varies with the phase of the infra-slow gastric basal rhythm.

Craig G Richter, Mariana Babo-Rebelo, Denis Schwartz, Catherine Tallon-Baudry

Abstract read
In one paragraph

Article in NeuroImage, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 59 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
59citing 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

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

  1. Pooled it
  2. Trial
  3. Trial
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  11. Time, space, memory and brain-body rhythms.Nature reviews. Neuroscience · 2026
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  13. The gut feeling in motion sickness.Communications biology · 2025
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  18. Dissociative Symptoms and Interoceptive Integration.Current topics in behavioral neurosciences · 2025
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors.

Craig G RichterLaboratoire de Neurosciences Cognitives (ENS - INSERM), Ecole Normale Supérieure - PSL Research University, Paris, France; Ernst Strüngmann Institute (ESI) for Neuroscience in Cooperation with Max Planck Society, Frankfurt, Germany. Electronic address: craiggrichter@gmail.com.
Mariana Babo-RebeloLaboratoire de Neurosciences Cognitives (ENS - INSERM), Ecole Normale Supérieure - PSL Research University, Paris, France.
Denis SchwartzSorbonne Universités, Inserm U 1127, CNRS UMR 7225, UPMC Univ Paris 06 UMR S 1127, Institut du Cerveau et de la Moelle épinière, ICM, Paris, France.
Catherine Tallon-BaudryLaboratoire de Neurosciences Cognitives (ENS - INSERM), Ecole Normale Supérieure - PSL Research University, Paris, France. Electronic address: catherine.tallon-baudry@ens.fr.

Funding

European Research Council 670325
6 · The paper itself

Abstract

A fundamental feature of the temporal organization of neural activity is phase-amplitude coupling between brain rhythms at different frequencies, where the amplitude of a higher frequency varies according to the phase of a lower frequency. Here, we show that this rule extends to brain-organ interactions. We measured both the infra-slow (~0.05Hz) rhythm intrinsically generated by the stomach - the gastric basal rhythm - using electrogastrography, and spontaneous brain dynamics with magnetoencephalography during resting-state with eyes open. We found significant phase-amplitude coupling between the infra-slow gastric phase and the amplitude of the cortical alpha rhythm (10-11Hz), with gastric phase accounting for 8% of the variance of alpha rhythm amplitude fluctuations. Gastric-alpha coupling was localized to the right anterior insula, and bilaterally to occipito-parietal regions. Transfer entropy, a measure of directionality of information transfer, indicates that gastric-alpha coupling is due to an ascending influence from the stomach to both the right anterior insula and occipito-parietal regions. Our results show that phase-amplitude coupling so far only observed within the brain extends to brain-viscera interactions. They further reveal that the temporal structure of spontaneous brain activity depends not only on neuron and network properties endogenous to the brain, but also on the slow electrical rhythm generated by the stomach.

Indexed as

Alpha RhythmAdultBrainFemaleHumansMagnetoencephalographyMaleNeural PathwaysStomachYoung AdultAlpha rhythmBrain-viscera interactionsCross-frequency couplingGastric rhythmPhase-amplitude couplingResting-state dynamics

Identifiers

PMID27557620
PMCPMC5312779

What OpenQuestion holds

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LicenceCC BY-NC-ND
Read underepoch 390

Registered trials

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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.