A fan of the U.S. women's football team blocks her ears during the ticker tape parade to celebrate their World Cup final win over Japan on Sunday, in New York, July 10, 2015. REUTERS/Andrew Kelly
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If you feel like a human scream jolts the deep recesses of your brain, there's a good reason for it.Researchers who explored how the brain handles a scream said Thursday the loud, high-pitched sound targets a deep brain structure called the amygdala that plays a major role in danger processing and fear learning.The researchers said an acoustic quality called "roughness," the quick change in sound loudness, sets screams apart from other sounds.Arnal said he is planning future research on infant screams to see if those have extra roughness.
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