The Freakanomics guys survey seemed to indicate that contrary to what psychologists thought, a lot of "logical" people fell into the right brained category.
I majored in philosophy, which IS on the right brained list, but philosophy is very logical, (virtually all math and science was created by
philosophers) so maybe the psychologists have something wonky in their assumptions about what it means to be "creative." Thats what I am guessing
from what we are seeing here and what Levitt found.