This Prosthetic Arm Brings Back Amputee's Sense of Touch

The DARPA agency created a prosthetic limb that has brought a close to realistic sense of touch to a test patient. The 28 year old who volunteered for this project was paralyzed for over 10 years, but thanks to the agencies work he can now feel sensations in his hand once again.

To accomplish this the DARPA team working on the project placed electrode arrays onto the 28 year old's sensory cortex (the brain region responsible for tactile sensations and pressure) and arrays on his motor cortex(the brain region responsible for movement). This has also given him the ability to move the robotic prostheses by sending signals from his brain to electrodes in the arm.

Source: DARPA