A brain–computer interface, sometimes called a brain–machine interface, is a direct communication link between the brain's electrical activity and an external device, most commonly a computer or robot
Participant in a brain-computer interface getting connected to a computer
Dummy unit illustrating the design of a BrainGate interface
Monkey operating a robotic arm with brain–computer interfacing (Schwartz lab, University of Pittsburgh)
Yang Dan and colleagues' recordings of cat vision using a BCI implanted in the lateral geniculate nucleus (top row: original image; bottom row: recording)