Monkey Mind Meld Moves Avatar Arm

"Researchers have known for a long time that brains have a tendency to sync up. When two people are tasked with the same activity, neurons in their brains start to fire at the same speed and in the same place, even if the people weren’t instructed to cooperate. No one really knows why this happens, but it’s a well-observed phenomenon—our brains are naturally inclined to cooperate with one another."