I realize many people don't believe in the existence of a soul, I'm not trying to debate that issue at this time.
For those that do believe in a soul, who thinks the soul plays a part in who we are, or do you prefer to think that only the brain and perhaps genetics have any bearing at all on this?
The other concept sometimes touched on by religious beliefs is that the soul can be kicked out of the body and another take it's place, going back to the first question would the person at that point change in personality?