I'm interested in proprioception and body ownership since I've had several times when CRPS was an issue and I'd lost my sense of where my body parts were. One example was when one night in bed in the dark when I went to scratch my left arm with my right hand. My original injury which caused CRPS was a right colles wrist fracture. I kept hitting the bed and other places but could not locate my left arm no matter how hard I tried. I ended up turning on the light and practising looking and touching my arm until I relearned where it was. It was really wierd.
Luke Parkitny is researching some of the factors that play a role in the development of complex regional pain syndrome (CRPS). He considers that " CRPS is indeed a complex condition that may include altered inflammatory reactions, brain changes, psychosocial or other potentiating factors plus that elusive factor x."
He commends the approach of managing "suffering and disability over just treating pathology."
I recommend reading his post on "Body in Mind".