Enhancing the Usability of Brain-Computer Interface Systems

Table 2

Results of the AM-SSVEP-based online BCI experiments (ACC: accuracy in %, ITR: information transfer rate in bit·min⁻¹, LPM: letters per minute in letter min⁻¹, and EFF: efficiency in %).

Sub.	Time window	Output path (error underlined)	ACC (%)	EFF (%)	ITR (bits/min)
S1	7 s	DDDDDDDDLLLLUULLLULLLDDD	84	80	8.01
S2	8 s	DDLLRLLLUULLDDDDDDULLDDD	95.65	86.96	12
S3	8 s	UDDLLLLDUULLLLDDDDDDUUDLLDDD	78.57	71.43	6.34
Mean			86.07	79.46	8.78