Two academic papers report preliminary work on apparent changes to brain function when a person is experiencing chronic pain. Diagnoses included Fibromyalgia and low back pain.
Evidence from:
R.Kwaitek et al. Arthritis and Rheumatism (Dec 2000) Vol. 43 #12.
and
I.Grachev et al. Pain (2000) Vol. 89 #1 Dec 2000 p 7 – 18.
Correction for traits, past history of injury events and reversibility would help establish causal direction.
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