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Related Experiment Videos

Cortical modulation of pain.

P T Ohara1, J-P Vit, L Jasmin

  • 1Department of Anatomy and W.M. Keck Foundation Center for Integrative Neuroscience, University of California, 513 Parnassus Avenue, San Francisco, California, 94143-0452, USA. pto@itsa.ucsf.edu

Cellular and Molecular Life Sciences : CMLS
|December 25, 2004
PubMed
Summary
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Pain perception involves sensory and emotional components processed in different brain regions. The cortex can reduce pain by modulating spinal cord signals or altering the emotional aspect of pain perception.

Area of Science:

  • Neuroscience
  • Pain Research
  • Sensory Processing

Background:

  • Pain is a complex sensation with distinct sensory-discriminative and affective-motivational components.
  • These components are processed in different cortical regions, suggesting distinct neural pathways.

Purpose of the Study:

  • To explore the dual mechanisms by which the cortex influences pain perception.
  • To investigate how cortical activity modulates both the transmission of nociceptive information and the emotional response to pain.

Main Methods:

  • The study reviews existing evidence on cortical modulation of pain.
  • It discusses the role of descending pain modulatory systems and direct cortical influence on affective aspects of nociception.

Main Results:

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  • The cortex can reduce pain by activating descending pathways that inhibit spinal cord nociceptive transmission.
  • Evidence suggests the cortex can also modulate the affective-motivational component of pain, diminishing its emotional impact.

Conclusions:

  • Cortical mechanisms play a significant role in pain modulation.
  • Understanding these mechanisms offers potential targets for novel pain management strategies.