Table 2.
Team name | Filtering | Imagery used for commands | Feature extraction and classification |
---|---|---|---|
Brain Tweakers | Bandpass, notch, spatial | Hands, feet, hands+feet | Power spectral density, feature selection with canonical variate analysis, classification using bayesian maximum a posteriori probability equivalent to qda |
BrainGain | Detrend, common average reference, spatial whitening, bandpass | Left hand, foot, tongue | Power spectral density, regularized logistic regression |
BrainStormers | Bandpass, spatial | Left hand, foot, word concatenation, auditory | Common spatial patterns, power spectral density, classifier ensemble |
Athena-Minerva | Bandpass, spatial | Hand, word association, mental arithmetic | Power spectral density, multiple binary classifiers |
NeuroCONCISE | Neural-time-series-prediction-preprocessing, subject-specific bandpass, common spatial patterns | Left hand, right hand, feet | Log variance of filtered signals, linear discriminant analysis and multiple binary classifiers, postprocessing of classifier output |
Ebrainers | Bandpass, spatial and temporal filtering | Hand, feet, mental arithmetic | Power spectral density, phase locking index, complex covariance patterns |
Mirage91 | Bandpass | Hand, feet, mental arithmetic, auditory | Common spatial patterns + slda, adaptive classifier |
Ecole Supérieure de Lyon | Spatial, independent component analysis | Left hand, right hand, tongue | Power spectral density, common spatial patterns, support vector machine |
Reported only for teams that agreed to make this information public. All teams used imagery (motor or otherwise) to generate BCI commands.