Fig. 1.
From: Practical real-time MEG-based neural interfacing with optically pumped magnetometers
Motion-onset visual evoked potential. a A schematic showing one trial of the experimental paradigm. b ERF (filtered between 0.5 and 15 Hz) at the OPM channel exhibiting the largest M200 amplitude. The embedded scalp plot shows the spatial activation pattern when the maximal M200 amplitude is reached. The full line indicates the average ERF and the shaded area the 95% confidence interval. c ERP (filtered between 0.5 and 15 Hz) at the scalp-EEG channel having the largest N200 amplitude. The embedded scalp plot shows the spatial activation pattern when the maximal N200 amplitude is reached. The full line indicates the average ERP and the shaded area the 95% confidence interval. d M300 ERF (similar conventions as in b). e P300 ERP (similar conventions as in c). f Accuracy of decoding the gazed target at the best OPM sensor, scalp-EEG electrode and OPM gradiometer for increasing stimulus repetitions. Embedded scalp plots show the average decoding accuracy across the scalp. g Multi-channel decoding accuracy for scalp-EEG and OPM for an increasing number of stimulus repetitions