I heard this NPR story on the radio. Wiring musicians up to measure their physical response to music -- yes, it is an old idea indeed. One of the books about Herbert von Karajan (I can't remember which one) describes how he had himself wired and then conducted a rehearsal or whatever with his blood pressure, temperature, et cetera being measured and recorded. That may have been twenty or twenty-five years ago, however. History much too ancient for the producers of this story to have known about.