In her office--a cool, dimly lighted room on the second floor of a former beer warehouse in northeast Minneapolis--Michele Repke is instructing me in the fine art of playing Pac-Man without a joystick. "You just need to relax and focus on the screen," Repke says, as she dabs water-soluble glue on my scalp. She then attaches four electrical sensors to my head. The sensors lead to a computer. In front of me, a modified arcade game boots up on the monitor. I relax and gaze at the screen. Suddenly, the little yellow Pac-Man begins to chug through the maze, gobbling up the... More >>>