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OPML Neuropathic Pain$
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Edited by Michael Bennett

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Theories, history, and current taxonomy

Chapter:
Theories, history, and current taxonomy
DOI:
10.1093/med/9780199563678.003.0001

• Pain is a complex experience of somatic mechanisms and psychological influences (affective and cognitive) and, as such, is always subjective in nature

• The nervous system is capable of substantial plasticity; it can change structure and function in response to development, injury, or experience

• Nociceptive or inflammatory pain arises from normal activation of pain pathways

• Neuropathic pain is pain arising as a direct consequence of a lesion or disease affecting the somatosensory system (abnormal activation of pain pathways)

• Pain is usually classified by mechanism (nociceptive or neuropathic), context (physiological or pathological), and location (somatic, visceral, etc.).

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