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Study: Screams Are Special , So Use Sparingly

The attention-getting quality of a scream explains why it's helped us survive, as infants and in our early evolution, according to a new study.   Neuroscientist David Poeppel at New York University says the research was partly inspired by babies. His colleagues Luc Arnal and Adeen Flinker each had newborns and friends with newborns, and Poepell says, "they kept talking about how their brains were being hijacked by screams, so they started looking into this with a personal...

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