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Related Experiment Videos

Exploring the pain "neuromatrix".

S W Derbyshire1

  • 1University of Pittsburgh Medical Center, PET Facility, B-938 PUH, 200 Lothrop Street, Pittsburgh, PA 15213, USA. stuart@pet.upmc.edu

Current Review of Pain
|November 4, 2000
PubMed
Summary
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Functional imaging reveals widespread brain activity during pain, supporting the neuromatrix theory. However, pinpointing specific dysfunctions in clinical pain remains a challenge for current imaging techniques.

Area of Science:

  • Neuroscience
  • Pain Research
  • Medical Imaging

Background:

  • Functional imaging studies consistently show multiple central nervous system regions involved in pain perception.
  • These regions form complex circuits processing affective, sensory, cognitive, motor, inhibitory, and autonomic responses to noxious stimuli.
  • The concept of a 'neuromatrix' is supported by this widespread neural engagement in pain processing.

Purpose of the Study:

  • To evaluate the clinical utility of functional imaging in understanding pain.
  • To assess the evidence for specific regional or circuit dysfunction in clinical pain states.
  • To determine if functional imaging needs to advance beyond the general neuromatrix concept for clinical application.

Main Methods:

  • Review of existing functional imaging studies on pain perception.

Related Experiment Videos

  • Analysis of data regarding regional and circuit involvement in pain processing.
  • Assessment of the correlation between imaging findings and clinical pain conditions.

    • Main Results:

    • Functional imaging demonstrates broad central nervous system involvement in pain, supporting the neuromatrix model.
    • There is limited evidence identifying specific regional or circuit dysfunctions associated with clinical pain.
    • Current functional imaging approaches may lack the specificity required for direct clinical application in pain management.

    Conclusions:

    • While the neuromatrix theory is supported by imaging, its broadness limits clinical utility.
    • Future functional imaging research must focus on identifying specific neural correlates of clinical pain.
    • Advancing imaging techniques beyond general pain processing is crucial for clinical relevance.