Stimulation of the vagus nerve allows patient who had been in a persistant vegetative state for 15 years to track objects with his eyes and respond to simple requests.
Air Force operator receiving transcranial direct current stimulation (TDCS) to accelerate learning.
By running a mild electric current through the brains of pilots during lessons, Air Force researchers have cut their personnel’s learning time in half. Pilots were being taught how to identify targets using drones—the practice is increasingly important to modern warfare and one which, due to its difficulty, is holding back the deployment of drones. Caffeine and other stimulants have been tested to aid learning but none work as well as two milliamperes of direct current for 30 minutes to pilot’s brains during training sessions on video simulators.