Army document describes technology that can transmit a voice into someone’s head
September 19, 2013
A declassified Army document titled “Bioeffects of Selected Nonlethal Weapons” describes a series of technologies that the military has developed, including one with the ability to transfer radio-frequency (RF) energy into a human target. The energy is perceived by the brain as sounds inside the target’s head as the microwaves are absorbed by the target’s body. This technology has already been proven capable of carrying modulated frequencies that sound like recognizable speech to the recipient. If fully developed, such a technology could be a powerful tool — for good, by silently transmit messages to hostages surrounded by captors — or for evil, by driving an unwitting man insane with voices in his head. Has the U.S. government ever used it?
The document was declassified in 2006 after a FOIA request. According to the Army document:
Application of the microwave hearing technology could facilitate a private message transmission. It may be useful to provide a disruptive condition to a person not aware of the technology. Not only might it be disruptive to the sense of hearing, it could be psychologically devastating if one suddenly heard “voices within one’s head”. [p.8]