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. 2022 May 20;8(20):eabo1396. doi: 10.1126/sciadv.abo1396

Fig. 4. Classification of SSVEPs recorded by the on-skin painted biogel electrodes.

Fig. 4.

(A) Dual visual field stimulus paradigm by a VR HMD, in which the left character flickered at 8 Hz and the right character flickered at 12 Hz. (B) SSVEP signals recorded when the subject gazed at 8-Hz flicker (top) and 12-Hz flicker (bottom) in a VR environment. (C) PSDA for SSVEP signals in (B). (D) SSVEP classification accuracy for different subjects. (E) SSVEP classification accuracy with different time scales. (F) SSVEP classification accuracy after different long-term duration.