A Robust and Self-Paced BCI System Based on a Four Class SSVEP Paradigm: Algorithms and Protocols for a High-Transfer-Rate Direct Brain Communication
Figure 8
Average results across all subjects
(G1 + G2) obtained using the manual (blue
line) and CSP-based (green line) methods with different lengths of the analysis
window; (a) error rate, (b) delay time, and (c) bit-rate calculated using Wolpaw's
definition.
