If our mind is not the functioning of brain but our soul are autism and alzheimers diseases that affect soul?

It has been scientifically proved that our mind is the functioning of the brain. But since fundies deny almost all truths in the world they deny it. So fundies are autism and alzheimer's disease diseases that affect our soul?
okay
I replaced autism with http://www.sciam.com/article.cfm?chanID=sa003&articleID=3FE89A86-E7F2-99DF-366D045A5BF3EAB1
okay
I replaced autism with dementia