CREATED RAIN MAN
I have increased knowledge after a brain injury, when many do not. This happened due to the rewiring process. The following is an excerpt of a conversation on a social network. I worked with this person. I used to advocate for individuals with disabilities in a former job position. The kind of knowledge needed for that was quite extensive.The quote shows just how far this knowledge goes now.
Back in my 1st yr of Psychology I remembered something about multiple copies of a memory are made and are stored in various places of the brain. We don't use all these copies, hence a lot of information is forgotten...but it is still there. (Remember that grade school teacher who said "Apply yourself"?) Now in neuroplasticity the brain will rewire. Since I lost the original wiring to a memory, my brain rewired to a copy. There were many copies, though, so my brain just rewired to all of them (at least most). This would explain my increased knowledge. I didn't learn anything new. It was always there. (I'm finally applying myself.) This also explains a great deal of music, movies, and TV programs being mixed in. There was a great deal of this in my childhood, therefore a great deal of multiple memory copies. (Let the TV be the babysitter.) Neuroplasticity also rewired to these. I really don't have "increased knowledge", rather an increased use of knowledge.
Also, since the rewiring happened directly, something unusual occurs: "...allowed Peek’s neurons to make new and unusual connections between his right and left hemispheres." This is about Kim Peek http://www.scientificamerican.com/article.cfm?id=why-did-the-absence-of-the-corpus&WT.mc_id=SA_Twitter_sciammind Peek had no corpus callosum. Memories were directly wired. This explains why I have some of his qualities. I discussed this issue and didn't know why I was so much like him. (note: I don't remember as many facts, because I never learned them.)
The multiple copies theory of memory is widely used today: http://www.quora.com/Is-there-any-redundancy-in-human-memory