Whenever you're letting your mind wander, not thinking about anything in particular, there's a few areas in your brain that have coordinated, cyclic activity levels. This activity is suppressed whenever you decide to concentrate on a task. This brain network has been labeled "the default network", and it's theorized to play a role in abstract simulations.
If you want to read a little about it, ScienceNews has this really neat piece out.
Monday, July 27, 2009
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