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The Neuroanatomy of Pain and Pain Pathways

  • Elie D. Al-Chaer
Chapter

Introduction

Our fascination with pain mechanisms possibly dates back to our awareness of our existence. Yet our study of pain pathways only gained focus with the reflex theory advanced by René Descartes in 1664 (Descartes, 1664) and was rejuvenated time and again by a number of subsequent theories, such as the specificity theory (Schiff, 1858) and the sensory interaction theory (Noordenbos, 1959). On the other hand, pattern and neuromatrix theories have discounted the specific function assigned to anatomic components of the nervous system (e.g. Berkley & Hubscher, 1995a; Melzack, 1999; Nafe, 1934), particularly when it comes to pain processing; but they have been faced with challenges of their own, not the least of which is translating their theoretical framework into clinical applications. This chapter highlights recent advances in our knowledge of the pain system including our understanding of nociceptors, of the processing of nociceptive information in the spinal cord, brainstem,...

Keywords

Receptive Field Dorsal Horn Dorsal Column Medial Thalamus Medial Lemniscus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgments

The author would like to thank Ms. Kirsten Garner for assistance with editing the manuscript. This work was supported by NIH Grant RR020146.

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Authors and Affiliations

  1. 1.Pediatrics, Internal Medicine, Neurobiology and Developmental SciencesCollege of Medicine, University of Arkansas for Medical Sciences, Biomedical Research CenterLittle RockUSA

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