Abstract
Visceral rhythms orchestrate the physiological states underlying human emotion. Chronic aberrations in these brain–body interactions are implicated in a broad spectrum of mental health disorders. However, the relationship between gastric–brain coupling and affective symptoms remains poorly understood. Here we investigated the relationship between this novel interoceptive axis and mental health in 243 participants, using a cross-validated machine learning approach. We find that increased frontoparietal brain coupling to the gastric rhythm indexes a dimensional signature of poorer mental health, spanning anxiety, depression, stress and well-being. Control analyses confirm the specificity of these interactions to the gastric–brain axis. Our study proposes coupling between the stomach and brain as a factor in mental health and offers potential new targets for interventions remediating aberrant brain–body coupling.
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Data availability
Deidentified participant data (EGG, control neurological and stomach–brain coupling) implemented in this article are available via GitHub at https://github.com/embodied-computation-group/StomachBrain-MentalHealth. Due to Danish privacy law, mental health data and raw neurological data are available upon reasonable request, with the formation of a data sharing agreement. Researchers who wish to access these data may contact M.A. (micah@cfin.au.dk) at The Center of Functionally Integrative Neuroscience, Aarhus University, Denmark. The complete dataset (Visceral Mind Project) will be released as a data publication upon completion of the full anonymization process.
Code availability
Code for this article is available via GitHub at https://github.com/embodied-computation-group/StomachBrain-MentalHealth.
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Acknowledgements
This research is financially supported by a Lundbeckfonden Fellowship (R272-2017-4345, M.A.) and a European Research Council Grant (ERC-2020-StG-948788, M.A.). I.R. is supported by a Marie Skłodowska-Curie Action (MSCA) BRAINSTOM (101028203). The funding source was not involved in the study design, collection, analysis, interpretation or writing of the manuscript.
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L.B. and IR analyzed the data, interpreted the results and wrote the paper. N.N. provided conceptual advice and contributed toward preprocessing of neuroimaging data. M.A. provided supervision, conceptual advice and wrote the paper.
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Banellis, L., Rebollo, I., Nikolova, N. et al. Stomach–brain coupling indexes a dimensional signature of mental health. Nat. Mental Health 3, 899–908 (2025). https://doi.org/10.1038/s44220-025-00468-6
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DOI: https://doi.org/10.1038/s44220-025-00468-6


