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Related Experiment Video

Updated: Dec 27, 2025

Real-time Analysis of Gut-brain Neural Communication: Cortex wide Calcium Dynamics in Response to Intestinal Glucose Stimulation
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Visceral influences on brain and behavior.

Hugo D Critchley1, Neil A Harrison

  • 1Psychiatry, Brighton and Sussex Medical School, Brighton BN1 9RR, UK. h.critchley@bsms.ac.uk

Neuron
|February 27, 2013
PubMed
Summary

Interoceptive pathways link bodily states to brain function, influencing perception, emotion, and behavior. Understanding these neural connections reveals the dynamic basis of self-awareness and homeostatic regulation.

Area of Science:

  • Neuroscience
  • Psychology
  • Physiology

Background:

  • Mental processes are closely tied to the body's internal state regulation (homeostasis).
  • Specific interoceptive pathways directly and indirectly impact brain functions.

Purpose of the Study:

  • To review the role of interoceptive pathways in shaping perception, cognition, emotion, and behavior.
  • To explore the mechanistic understanding of these pathways' influence on the concept of self.

Main Methods:

  • Literature review of anatomical and functional studies on interoceptive pathways.
  • Analysis of evolutionary conservation and discrete dimensions of pathway influence.
  • Synthesis of psychological and behavioral data linked to interoception.

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Main Results:

  • Interoceptive pathways introduce biases in perception, cognition, emotion, and behavior.
  • The anatomical organization and influence of these pathways follow conserved, discrete dimensions.
  • These pathways contribute to the dynamic, mechanistic understanding of the self.

Conclusions:

  • Interoceptive pathways are fundamental to integrating bodily signals with mental processes.
  • A mechanistic framework for understanding interoception is achievable through studying conserved dimensions.
  • These pathways provide critical insights into the neural basis of selfhood and conscious experience.