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. 2021 Dec 20;8:315. doi: 10.1038/s41597-021-01094-4

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© The Author(s) 2021, corrected publication 2022

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Fig. 5 — Grand average of all participants of ERP and SSVEP waveforms according to four different speeds of 0, 0.8, 1.6, and 2.0 m/s. (a) Grand average baseline corrected waves of all participants for ERP of target and non-target in scalp-EEG at Pz and ear-EEG at L10 for 1 s from −200 to 800 ms according to the trigger at different speeds. (b) Grand average PSD of all participants for SSVEP in scalp-EEG at Oz (left) and ear-EEG at L10 (right) at different speeds. The dashed line indicated the target frequency, such as 5.45, 8.57, and 12 Hz.