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Related Concept Videos

Somatosensation01:33

Somatosensation

The somatosensory system relays sensory information from the skin, mucous membranes, limbs, and joints. Somatosensation is more familiarly known as the sense of touch. A typical somatosensory pathway includes three types of long neurons: primary, secondary, and tertiary. Primary neurons have cell bodies located near the spinal cord in groups of neurons called dorsal root ganglia. The sensory neurons of ganglia innervate designated areas of skin called dermatomes.
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In Vitro Recording of Mesenteric Afferent Nerve Activity in Mouse Jejunal and Colonic Segments
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Accessing the viscera: Technologies for interoception research.

Karen K L Pang1, Rajib Mondal2, Atharva Sahasrabudhe3

  • 1Department of Brain and Cognitive Sciences, Massachusetts Institute of Technology, United States; K. Lisa Yang Brain-Body Center, Massachusetts Institute of Technology, United States; McGovern Institute for Brain Research, Massachusetts Institute of Technology, United States; Research Laboratory of Electronics, Massachusetts Institute of Technology, United States.

Current Opinion in Neurobiology
|May 18, 2025
PubMed
Summary
This summary is machine-generated.

New bioelectronic interfaces enable studying interoception (body signal perception) in visceral organs. These tools are crucial for understanding how the brain-body axis maintains homeostasis and behavior.

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Area of Science:

  • Neuroscience
  • Bioengineering
  • Physiology

Background:

  • Interoception, the brain's perception and regulation of internal body signals, is vital for homeostasis and behavior.
  • Understanding interoception requires tools to record and modulate physiological processes across the brain-body axis.
  • Existing neurotechnologies are often unsuitable for visceral organs like the gut, heart, liver, or bladder.

Purpose of the Study:

  • To review recent technological advancements for recording and modulating visceral organ physiology in vivo.
  • To focus on implantable bioelectronic interfaces for use in behaving small animals.
  • To highlight innovations in materials and electronics enabling these interfaces.

Main Methods:

  • Review of recent literature on bioelectronic interfaces for visceral organ monitoring.
  • Focus on technologies applicable to small animal models in vivo.
  • Discussion of material science and electronic engineering innovations.

Main Results:

  • Development of implantable bioelectronic organ interfaces for visceral organ research.
  • These interfaces allow for recording and modulation of physiological signals in behaving animals.
  • Innovations in materials and electronics are key enablers for these advanced tools.

Conclusions:

  • Technological progress is enhancing our ability to study interoception in visceral organs.
  • Implantable bioelectronic interfaces offer new possibilities for investigating the brain-body axis.
  • Further technological development is needed to fully address the challenges in interoception research.