Table 3.

Comparison of the average $10\times 10$ fold cross-validation accuracy of the ipsilesional and contralesional BCI for those with ipsilesional BCI accuracy below 60% and those with the ipsilesional BCI accuracy above 80%, obtained using three different BCI feature extraction methods.

Feature extraction	Ipsilesional Acc.<60%			Ipsilesional Acc.>80%
	Ipsilesional $(Mean\pm SD)$	Contralesional $(Mean\pm SD)$	p-value	Ipsilesional $(Mean\pm SD)$	Contralesional $(Mean\pm SD)$	p-value
FBCSP	$54.37\pm 3.29$	$57.74\pm 6.51$	0.02	$89.01\pm 5.55$	$83.92\pm 7.33$	$3.8\times {10}^{-}5$
CSP	$52.32\pm 4.65$	$57.34\pm 9.57$	$5.05\times {10}^{-}5$	$88.52\pm$ 5.65	$82.62\pm$ 8.55	0.002
BP	$52.27\pm 5.91$	$61.35\pm 8.55$	0.05	$85.05\pm$3.36	$77.08\pm$9.58	$7.79\times {10}^{-}4$

Acc. accuracy, SD standard deviation.