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Single Trial Classification of Motor Imagination Using 6 Dry EEG Electrodes

PLoS ONEPublished 24 July 2007Open access
Florin Popescu, Siamac Fazli, Yakob Badower, Benjamin Blankertz, Klaus-R. Müller
Citations199
SJR quartileQ1
SJR score0.80
SNIP1.07
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TL;DR

A novel EEG cap based on dry electrodes was developed which does not need time-consuming gel application and uses far fewer electrodes than on a standard EEG cap set-up and could significantly widen the use of EEG for emerging applications requiring long-term brain activity and mental state monitoring.

Abstract

Our study shows that a surprisingly simple and convenient method of brain activity imaging is possible, and that simple and robust analysis techniques exist which discriminate among mental states in single trials. Within 15 minutes the dry BCI device is set-up, calibrated and ready to use. Peak performance matched reported EEG BCI state of the art in one subject. The results promise a practical non-invasive BCI solution for severely paralyzed patients, without the bottleneck of setup effort and limited recording duration that hampers current EEG recording technique. The presented recording method itself, BCI not considered, could significantly widen the use of EEG for emerging applications requiring long-term brain activity and mental state monitoring.

Keywords

Neuroscience