GIVING PROSTHETICS a sense of touch. “Brain-machine interfaces have made it possible for monkeys and some humans to control robotic limbs using just their thoughts. But ideally, a person using an artificial limb or other device would not only be able to control the device, but also feel what it’s touching. A new study from the lab of Miguel Nicolelis at Duke University Medical Center takes a first step toward such an interface. In a paper published today in Nature, his team reports that monkeys can learn to operate a virtual-reality hand that incorporates tactile feedback.”