Evaluation of a Compact Hybrid Brain-Computer Interface System

Figure 6

Grand average time-dependent NIRS (red), EEG (blue), and hybrid (HYB; black) classification accuracies. The gray shaded region shows a task period (t = 0–10 s). The red and blue asterisks below indicate the time periods in which the accuracies of HYB were significantly higher than those of NIRS (red) and EEG (blue), respectively. Error bars along with the solid lines show the standard errors.