Figure 3.

The BrainGate neural interface system created by Cyberkinetics Neurotechnology Systems Incorporated. (A) The BrainGate sensor resting on an American penny, 13 cm ribbon cable and percutaneous titanium pedestal which is attached to the skull. (B) Scanning electron micrograph of the 100 electrode Utah array. (C) Spin-lattice relaxation time (T₁) weighted magnetic resonance image (MRI) of a tetraplegic subject showing the approximate site of sensor implantation. (D) The first participant of the BrainGate system directing a computer cursor toward the orange square on the PC monitor solely by neural signals. Reprinted with permission from Macmillan Publishers Ltd: Nature 442, 164–171 (Hochberg et al., 2006), copyright 2006.