From The Science Channel:

A team at the University of California, Irvine, led by cognitive scientist Mike D'zmura, is looking for a solution. D'zmura: communicating direction is somehow very basic. We do it all the time with our bodies. Well, we're interested in learning how we might communicate diction using brain waves. And that's sort of our controcondition. He's set his sights on finding the mechanism behind a mysterious phenomenon known as the cocktail party effect. If we are at a large party where everybody's talking, we are somehow able to hear what it is our friend standing next to us is saying even though everybody else is shouting in the vicinity.

Video (with transcript) available at: http://beta.criticalmention.com/bits/wordplay/#/uuid=559053c0-15c5-4a4c-...