Figure 5
From: Assessing the feasibility of online SSVEP decoding in human walking using a consumer EEG headset
The topographical mapping of the relative low-frequency power (1–5 Hz) and SSVEP amplitude (9–12 Hz) (derived from flickering minus fixation-cross) under different walking speeds. The topographic legend indicates the channel locations of the 14-channel Emotiv EEG headset. The units of color bars represent the original EEG power in the dB scale. Note that these 14-channel interpolated maps (with the absence of the centro-parietal electrodes) do not imply spectral changes in the centro-parietal regions during walking.