Using principal component analysis and functional magnetic resonance imaging ( fMRI ) the main source of early BP was determined to be Area 6 of the precentral gyrus bilaterally, and the main sources of late BP were determined to be Area 4 ( also known as the Primary Motor Cortex ) and Area 6.
22.
Implanted in Nagle s right precentral gyrus ( area of the motor cortex for arm movement ), the 96-electrode BrainGate implant allowed Nagle to control a robotic arm by thinking about moving his hand as well as a computer cursor, lights and TV . One year later, professor Jonathan Wolpaw received the prize of the Altran Foundation for Innovation to develop a Brain Computer Interface with electrodes located on the surface of the skull, instead of directly in the brain.
