Crick studied vision, which is highly localized and has structures that have an organized physical pattern. He studied vision becuse it is "easy".
As you study the brain structures that we have in common with other species, you see more specific localizations. But speech and language have well studied localizations. Damage to specific sites produce predictable deficits. Dficites of production (speech) can sometimes be trained around, but deficits of thought seldom recover. The intersting thing about people with thought deficts is that they sometimes don't know that anything is missing.
I didn't mean to get into the anatomy of the brain, my interest was in the biophysical mechanism and consciousness - but you got me interested, so I looked around and found a lot of information available on the anatomical mapping of the brain!
For lurkers who might be interested in more:
An introduction from Princeton
The visible human project (NIH)
My connection is much too slow to take advantage of the second one (LOL!)