An implanted brain grid has been found to accurately read motor signals, a step towards using it for thought-controlled wheelchairs and prosthetics.


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.



“To put this in perspective,” says researcher Eric Leuthardt, ” the previous EEG-based systems are equivalent to a 1908 Wright brothers airplane in regards to speed of learning to achieve control. Right now with our results we’re flying around in an F-16 jet.”



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