Implanted Brain Grid Reads Minds | Betterhumans.com

The grid, studied by researchers at Washington University in St. Louis, uses electrocorticographic (ECoG) activity rather than electroencephalographic (EEG) activity, the latter of which is commonly used to study the brain.

This gives it a higher resolution and broader bandwidth, allowing for faster and more accurate mind reading....

While better than EEG in many ways, ECoG requires taking data invasively directly from the brain.

Leuthardt and colleagues therefore tested the system on four people with epilepsy who had ECoG implants so that doctors could find brain regions responsible for their seizures...

The researchers say that the system is faster to learn than those using EEG.

"It takes many months to train using EEG, whereas our approach was done basically in an hour or so," says Moran. "That's because we got the signals from the surface of the brain rather than having to go through the skull."