This is very cool, but we've had spellers based on the P300 signal for some time; here's an article from 5 years ago explaining how to set one up: http://openvi

This is very cool, but we've had spellers based on the P300 signal for some time; here's an article from 5 years ago explaining how to set one up: http://openvibe.inria.fr/openvibe-p300-speller/ http://openvibe.inria.fr/openvibe-p300-speller/ So it looks like the big improvement here is speed; P300 spellers are slow, like 4 characters per minute. What techniques does this new research use to improve that detection speed? The article doesn't go into much detail about how the signal detection or text entry actually works.