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@ArlanWasHere There is lots of research related brain development and handedness using twins bc lefties are 2x in twins. My son is a lefty and his twin sister is a righty — They are both brilliant (says mom :), but in very different ways! https://t.co/m2UH
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Frontiers | An overview of human handedness in twins | Cognition http://t.co/fy21YF1FEs
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An overview of human handedness in twins: Syuichi Ooki http://t.co/4noqOuCJ27 #psychology