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Inference on homeostatic belief precision.

Ozan Unal1, Orhun Caner Eren2, Göktuğ Alkan2

  • 1Translational Neuromodeling Unit (TNU), Institute for Biomedical Engineering, University of Zurich & ETH Zurich, 8032 Zurich, Switzerland; Computer Vision Lab (CVL), ETH Zurich, 8092 Zürich, Switzerland.

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Summary

This study introduces a new computational method to measure brain-body interactions (BBI). The approach quantifies "homeostatic beliefs," crucial for understanding mental and psychosomatic disorders.

Keywords:
AllostasisAllostatic self-efficacyComputational psychosomaticsHomeostasisInteroceptionTranslational neuro-modeling

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Area of Science:

  • Neuroscience
  • Computational Psychiatry
  • Psychosomatic Medicine

Background:

  • Interoception and homeostatic/allostatic control are key to brain-body interactions (BBI).
  • Dysfunctional BBI is implicated in mental and psychosomatic disorders.
  • Computational assays for BBI are needed but challenging to develop.

Purpose of the Study:

  • To present a novel computational approach for assessing brain-body interactions (BBI).
  • To derive statistical procedures for inferring "homeostatic belief precision" from physiological and action data.
  • To contribute to understanding affective and psychosomatic disorders through a computational lens.

Main Methods:

  • Developed a novel approach based on a generic computational model of homeostatic/allostatic control.
  • Defined homeostatic setpoints as dynamic probability distributions ("homeostatic beliefs").
  • Derived two alternative statistical estimators for inferring homeostatic belief precision.

Main Results:

  • Presented statistical procedures for inferring homeostatic belief precision.
  • Analyzed the inference problem and derived novel estimators.
  • Applied the method to simulated data, demonstrating its potential utility.

Conclusions:

  • The proposed method offers a way to statistically infer homeostatic belief precision.
  • This approach may aid in assessing brain-body interactions (BBI) in individuals.
  • The findings support the role of "homeostatic beliefs" in cerebral regulation of bodily states.