EEG Classification for Hybrid Brain-Computer Interface Using a Tensor Based Multiclass Multimodal Analysis Scheme

Figure 8

A visualization example of the assembled tensor of a SSVEP task (focusing on the 11 Hz stimulus). The spectrograms are shown at each channel according to channels distribution over scalp, with time ranging from 0 to 2 s and frequency ranging from 5 to 30 Hz. The spectrograms at C3, Oz, and C4 channels are enlarged in the bottom.