I can envision it being added to militaries' arsenals of so-called "non-lethal" weapons.
A special headset was placed on my cranium by my hosts during a recent demonstration at an NTT research center. It sent a very low voltage electric current from the back of my ears through my head — either from left to right or right to left, depending on which way the joystick on a remote-control was moved.

http://news.yahoo.com/s/ap/20051026/ap_on_hi_te/remote_control_for_humans

It´s a hoax.