TEXT: Hassan Jassar (seated) wears a sensor-outfitted cap that detects changes in blood flow and oxygenation, thus sensing brain activity. That information is transmitted to a computer and interpreted. Thiago Nascimento, left, views this brain activity in real-time while wearing augmented reality glasses, and the computer image shows that particular pain signature in the brain. From left to right, also pictured, Dr. Alex DaSilva, Dajung Kim, Manyoel Lim, Xiao-su Hu.