"Mental illness often makes headlines after tragedies like last week's deadly shooting at Seattle Pacific University. A number of mental illnesses, including schizophrenia, can cause auditory hallucinations. It's important to know that only a tiny number of people who hear voices engage in violence of any kind. Anderson took part in an experiment to help people understand what others living with mental illness experience everyday. Anderson wore headphones that simulate hearing voices while trying to do everything from puzzles to simply interacting with people in the street" (CNN.com).