According to a new study from the Donders Institute for Brain, Cognition and Behaviour in the Netherlands, our speaking voices actually register subtle changes along with our gesticulating limbs.
It’s all about acoustics: the pitch and volume of a voice change together with the movement of arms and hands. "That change is very subtle with a wrist movement," says Pouw. “It is less subtle with an arm movement. The pitch jumps up slightly whenever a movement slows down.”
According to Pouw, there are...
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