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Nociception

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Nociception—the ability to feel pain—is essential for an organism’s survival and overall well-being. Noxious stimuli such as piercing pain from a sharp object, heat from an open flame, or contact with corrosive chemicals are first detected by sensory receptors, called nociceptors, located on nerve endings. Nociceptors express ion channels that convert noxious stimuli into electrical signals. When these signals reach the brain via sensory neurons, they are perceived as pain.

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Related Experiment Video

Updated: Aug 28, 2025

Optimizing Photoneuromodulation Techniques to Evaluate the Role of Green Light-Emitting Diodes in Pain Management

Optimizing Photoneuromodulation Techniques to Evaluate the Role of Green Light-Emitting Diodes in Pain Management

Published on: March 28, 2025

The distributed nociceptive system: a novel framework for understanding pain.

Robert C Coghill^1,2,3

¹Pediatric Pain Research Center, Cincinnati Children's Hospital, Cincinnati, OH, USA.

Scandinavian Journal of Pain

|September 21, 2022

Summary

Understanding central nervous system pain mechanisms is limited, hindering chronic pain treatment. A new Distributed Nociceptive System framework offers insights into pain processing and supports multidisciplinary approaches.

Keywords:

WDR brain distributed fMRI population recruitment spinal

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Last Updated: Aug 28, 2025

Optimizing Photoneuromodulation Techniques to Evaluate the Role of Green Light-Emitting Diodes in Pain Management

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Published on: March 28, 2025

Dynamic Quantitative Sensory Testing to Characterize Central Pain Processing

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Published on: February 16, 2017

Teasing Out the Interplay Between Natural Killer Cells and Nociceptor Neurons

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Published on: June 30, 2022

Area of Science:

Neuroscience
Pain Research
Systems Biology

Background:

Current understanding of central nervous system (CNS) pain mechanisms is limited.
This deficit presents significant challenges in diagnosing and treating chronic pain effectively.

Purpose of the Study:

Introduce a new conceptual framework: The Distributed Nociceptive System.
Emphasize system-level aspects of nociceptive processing.
Provide a structure for understanding complex spatial aspects of chronic pain.

Main Methods:

Conceptual framework development.
Incorporation of population coding principles.
Integration of distributed processing concepts.

Main Results:

The Distributed Nociceptive System framework highlights system-level nociceptive processing.
This framework incorporates population coding and distributed processes.
It offers a structure for analyzing the spatial dimensions of chronic pain.

Conclusions:

The Distributed Nociceptive System provides a novel perspective on pain mechanisms.
It offers a clear rationale for advancing multidisciplinary treatments for chronic pain.
This framework aids in understanding and addressing the complexities of chronic pain.