An Ear-EEG-based Brain-Computer Interface using Concentration Level for Control

Ear-EEG is an alternative EEG acquisition method to the scalp-EEG conventionally used in Brain-Computer Interface (BCI). It is a more comfortable, discreet, and fashionable method comparing to the scalp-EEG. This work proposes an Ear-EEG-based BCI system that detects and utilizes the concentration level as the BCI signal. The experiments conducted in this study shows that the concentration level can be detected from the Ear-EEG acquiring around the user's ears. In the online experiment, our BCI system achieve the average true positive rate of 83% with the performance time of 3.98 seconds and false discovery rate of 16%. This study serves as another proof that Ear-EEG is a reliable EEG acquisition method especially for the BCI system that aims for the daily-life applications for normal healthy users.