Al goes out on a limb for rehabilitation: When a body's neural-muscle network systems are disrupted, electrical stimulation can re-establish communication. Artificial intelligence could provide further insight into how the human body works

THE SIMPLE ACTION of picking up a ball and throwing it involves complex communication between the brain and motor neurons inside the spinal cord to the muscles in the arm. But what happens when the nerves that transfer these signals are damaged, causing a roadblock in the path of the message?