How does the brain work?

When you read something, is there a voice in your head that says the words for you? Does the voice change depending on the type? Read this and think about it:
doesthevoicechangewhenitypelikethis? or     how     about     this? OR what ABOUT this? or.maybe.this?  does the pitch or something else change if I type like this:
What                  Now               I               Like
      
         Happens               When          Type           This?
Does the brain register the difference in typing? Or is that you thinking that the pitch and speed change? How much of reading or anything else is you thinking...or how the brain registers? How does the brain look at something and register it? How much of our brain is used? How much of the brain is useless? How much is the scary part? Do we all have a part capable of something horrendous? Since pyschopaths are certifiably ill...does that mean they are using a different part of their brain then the rest of us? Do the geniuses use more of their brain? Or just use it in a different way? Are we all capable of controlling our brain? Or could it perhaps control us? There are so many questions and perhaps every one of use knows the answers...it just might be hidden in the part of the brain we don't use.