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Evolutionary sleight of hand: Then, they saw it; now we don't
Published online by Cambridge University Press: 12 August 2005
Abstract:
Arbib's gestural-origins theory does not tell us why or how a subsequent switch to vocal language occurred, and shows no systematic concern with the signalling affordances or constraints of either medium. Our frame/content theory, in contrast, offers both a vocal origin in the invention of kinship terms in a baby-talk context and an explanation for the structure of the currently favored medium.
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