Table 2. BCI studies in stroke rehabilitation, focusing on upper-extremity rehabilitation and EEG was used as a modality to measure brain activities.

Bibliography	Feedback	BCI Classes
Prasad et al. [28]	BCI + Visual	2-Class: MI Left vs MI Right (Arm/Hand)
Ortner et al. [29]	BCI + Visual	2-Class: MI Left vs MI Right (Hand)
Kaiser et al. [30]	BCI + Visual	2-Class: MI/AT (Grasp) vs Rest
Daly et al. [31]	BCI + Visual + FES	2-Class: MI/AT (Finger Extension) vs Relax
Tam et al. [32], Meng et al. [33]	BCI + Visual + FES	2-Class: MI (Wrist) vs Rest
Young et al. [34]	BCI + Visual + FES + TDU	2-Class: AT (Open + Close Hand) vs Rest
Tan et al. [35]	BCI + Visual + NMES	2-Class: MI (Hand) vs Rest
Ang et al. [36–38]	BCI + Visual + Robot	2-Class: MI (Hand) vs Rest
Ang et al. [39]	BCI + Visual + Robot	2-Class: MI (Grasp) vs Rest
Rodriguez et al. [40, 41]	BCI + Visual + Robot	2-Class: MI (Elbow Flexion) vs Rest;
		2-Class: MI (Elbow Extension) vs Rest
Buch et al. [42], Broetz et al. [43]	BCI + Visual + Orthosis	2-Class: MI/AT (Grasp) vs Rest (Open)
Shindo et al. [44]	BCI + Visual + Orthosis	2-Class: MI (Open Hand) vs Rest
Ramos-Murguialday et al. [45]	BCI + Orthosis	2-Class: AT (Reach & Grasp) vs Rest
Frisoli et al. [46]	BCI + Arm Exoskeleton + Kinect + Eye-Tracker	2-Class: MI (Right Arm) vs Rest
Cincotti et al. [47]	BCI + Visual / BCI + EMG + FES	2-Class: MI/AT (Grasp/Finger Extension) vs Rest

MI: Motor Imagery; AT: Attempted Movement; FES: Functional Electrical Stimulation; TDU: Tongue Stimulation;

NMES: Neuromuscular Electrical Stimulation.

BCI studies in stroke rehabilitation, focusing on upper-extremity rehabilitation and EEG was used as a modality to measure brain activities.