Saturday, December 5, 2009

Language Began as Gesture

Human speech probably evolved from the gestures of our primate ancestors. That's the finding of researchers at Yerkes National Primate Research Center in Atlanta. They studied chimps and found they have a strong bias toward right-hand gestures. In humans, spoken language is mediated mostly by the left hemisphere of the brain, which also controls the movements of the right hand, supporting the idea that spoken language started as gestures.