Donald Ewen Cameron's Tape Recorder

Origin
Donald Ewen Cameron was a psychiatrist involved in the CIA mind intelligence program MKUltra. He experimented on patients without their consent or knowledge, using electroshock therapy and experimental drugs such as LSD, which rendered some of his patients permanently comatose.

Effects
When played, it changes the listener's psyche and personality. This can cause a model citizen to turn into a hardened criminal, or a responsible leader to become a careless fool. They need to listen to it while asleep to activate, and it will keep them in a sleep-like state. If the person has been stopped, but the artifact not neutralized, they will fall into a coma that will last until the artifact is neutralized.