A rich body of evidence suggests that chronic pain is associated with changes in the structure and function of the central nervous system. This is reflected by structural and functional brain imaging data on chronic low back pain16,49, complex regional pain syndrome31,38, or phantom limb pain14,15. Interestingly, recent findings also provide preliminary insight into similar cortical alterations in chronic neck pain33. Behavioral studies have shown that neck pain is associated with reduced tactile acuity20,35, confirming that patients with long-lasting pain perceive their painful body part less accurately9.
from The Journal of Pain https://ift.tt/2uhjZjj
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