Applying muscle-stimulating electrodes to carefully selected points on the necks of volunteers can force the wearer to look up or down, or side to side 鈥� which could be useful for steering attention in a 3D聽virtual reality聽training or聽gaming聽environment, but potentially in augmented reality applications in the real world, too. Currently, the only systems capable of steering the head are the robotic exoskeletons used by medics for neck rehabilitation.