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Interoceptive rhythms in the brain.
Tahnée Engelen1, Marco Solcà1, Catherine Tallon-Baudry2
1Cognitive and Computational Neuroscience Laboratory, Inserm, Ecole Normale Supérieure PSL University, Paris, France.
Nature Neuroscience
|September 11, 2023
Summary
Interoception, sensing internal body signals, is not isolated but interacts with external sensory processing. This integration is crucial for organism integrity and influences perception and self-awareness.
Area of Science:
- Neuroscience
- Physiology
- Cognitive Science
Background:
- Interoception, the sensing of internal bodily signals, is vital for survival.
- It is increasingly recognized as interacting with external sensory processing, cognition, and action.
Purpose of the Study:
- To review evidence on the anatomical and functional integration of interoception with exteroception.
- To explore how interoceptive signals interact with external information processing.
Main Methods:
- Review of existing literature focusing on cardiac, respiratory, and gastric rhythms.
- Analysis of interactions from peripheral transduction to cortical integration.
Main Results:
- Interoception is anatomically and functionally intertwined with exteroception across multiple processing stages.
- Interactions occur in a distributed neural network, extending beyond core interoceptive areas.
- Interoceptive rhythms influence perceptual detection and sense of self, sometimes competing with external inputs.
Conclusions:
- Integrating interoception and exteroception provides a unified framework for understanding biological information processing.
- This integrated approach addresses fundamental questions about brain coordination and information integration.
- Understanding these interactions is key to comprehending organismal integrity and self-awareness.
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