posted on Nov, 30 2005 @ 09:31 PM
I've attended lectures by Wise Young, the world's authority on spinal cord injury - when he discussed Learned Non Use - its not that the spinal cord
has more of an impact on the brain - it was looked at as a sign of the brain adapting to the lack of stimuli.
Two things could happen
1) Basically the loss of a signal from the normal pathways forces the neurons to look for stimulus in neighboring cells thus making new pathways
2) The cells realize they aren't needed and go under apoptosis.
(Then of course something we don't know at all could happen)
other therapies in learned non use involve stimulating the neurons with electrodes as well.