Why screams are terrifying
by Mark Frauenfelder from on (#EX94)
Why are screams so frightening? Because sounds with frequency modulations in 30-150 Hz range have a particular "roughness" to them that activates the fear circuit in the amygdala, according to research published in Current Biology, titled "Human Screams Occupy a Privileged Niche in the Communication Soundscape." Read the rest