Left-handers have faster connections between brain hemispheres

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I'm a linguist, but I've never heard the claim that lefties use both sides of the brain in language as Dr. Williams claims in the article. A quick google didn't bring up anything. Know of any sources on this Dave? Granted, I'm a syntactician, not a psycho-linguist, so maybe I should just ask some of my colleagues on that side of the discipline.

I don't know of any sources offhand, and Greta's out of town, so I can't ask her right now. I do know that left-handers brains aren't simply mirror images of right-handers, which is why they are usual excluded from brain research.