BCI

Brain-computer interfaces convert neural signals into digital commands. From Vidal's 1973 coinage to Neuralink's 2024 human implant, here's how BCIs work and what they can and cannot do.

How Hans Berger's secret obsession with telepathy in 1924 produced the EEG—and why those squiggly lines still diagnose epilepsy and decode sleep 100 years later.

Inside Neuralink's N1 implant — 1024 electrodes, a surgical robot, and the race to give paralyzed patients control of computers with thought alone.

AI-powered BCIs are restoring cursor control, handwriting, and speech to people with paralysis. Here is how the decoding works and where it still fails.

Deep learning systems can now turn brain recordings into text, speech, and rough images. Here is how it works, what it needs, and where it stops.

A device implanted in the brain that lets paralysed patients move computer cursors with their thoughts. Here's how Neuralink and other brain-computer interfaces actually work.