Neural prosthetic devices implanted in the brain's movement center, the motor cortex, can allow patients with amputations or paralysis to control the movement of a robotic limb—one that can be either connected to or separate from the patient's own limb. However, current neuroprosthetics produce motion that is delayed and jerky—not the smooth and seemingly automatic gestures associated with natural
![Controlling a Robotic Arm with a Patient's Intentions](https://cdn-ak-scissors.b.st-hatena.com/image/square/3972c8b72901243223f73490807e7503363de123/height=288;version=1;width=512/https%3A%2F%2Fcaltech-prod.s3.amazonaws.com%2Fmain%2Fimages%2FRAndersen-HP-NeuralImplant-NEWS-WEB.width-600.png)