Scientists Discover That They Need to Go to TMS

According to this link, scientists have only recently discovered that we gesture with our voices. "Nusbaum coauthored a paper in the Journal of Memory and Language that reported on a group of experiments said to provide the first evidence of "analog acoustic expression" -- people unconsciously modulating their voices in ways that provide an additional channel of expression understood by others."

Duh. It's called pace, power and pitch. Every kid at the Hall knows that. Seriously. They're just now discovering this? I'm dumbstruck.