Table 1.

Details of datasets.

Dataset	Classes	Subjects	Trials per class	Trial duration (s)	Channels	Sampling rate (Hz)
BNCI2014001	Left/right/feet/tongue	9	144	4	22	250
BNCI2014004	Left/right	9	360	4.5	3	250
PhysionetMI	Left/right/hands/feet	109	20–30	3	64	250
Cho2017	Left/right	52	100	3	64	512
Weibo2014	Left/right/hands/feet	10	80	4	60	200
Zhou2016	Left/right/feet	4	160	5	14	250
CBCIC2019001	Left/right	18	60	4	59	1000
CBCIC2019004	Left/right	6	40	4	59	250