If you were to peek in-side Sandra Trehub's lab, you might easily mistake it for one of those obnoxious superbaby classes. Beaming 6- to 9-month-olds sit transfixed in a parent's lap as a few seconds of melody pours from the speakers, and become more alert when the tempo or pitch changes. But the University of Toronto psychologist isn't trying to teach infants the finer points of Vivaldi. She is, instead, trying to shed light on whether the human brain comes preloaded with music software the way a laptop comes preloaded with Windows.
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