Enhancing the Usability of Brain-Computer Interface Systems

Table 3

Results from natural-sound ASSR-based online BCI experiments (NUM: number of correct classifications per total number of trials, SEPC: specificity, SENS: sensitivity, and ITR: information transfer rate in bit·min⁻¹). Inaccurate classifications are underlined.

Sub.	Time window	Task	Classification results	NUM (correct/total)	SPEC	SENS	ITR (bits/min)
S1	14 s	LLRLRLRLRR	LLRRRLRLRR	9/10	1.0	0.83	2.28
S2	14 s	LRRLRRLRLL	RRRLRLLRLR	7/10	0.67	0.75	0.51
S3	14 s	RRRLLRLLRL	RRRLRLLLRL	8/10	0.8	0.8	1.19
Mean				8/10	0.82	0.79	1.33