Do you have a citation for that first claim? It fits my prejudices so neatly that I'd like to see the proof. I've tried to google a little for it with no success, so my apologies for any imposition.
Haven't read it & it's 8 years old, but here's this. Hopefully it'll point you toward better search terms. I used "what would jesus do brain imaging" without quotes.
http://blogs.discovermagazine.com/notrocketscience/2009/11/3...