News From the Field
Out of the Mouths of Primates, Facial Mechanics of Human Speech May Have Evolved
June 20, 2012
Two recent studies based at Princeton University suggest that the oral-facial component of human speech evolved from lip smacking, a friendly back-and-forth gesture performed by primates such as chimpanzees, baboons and macaques. The studies suggest a separate neural control for facial mechanics in primates that could help illuminate the neurological basis of speech disorders in humans.
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