Fig. 3: Time-domain correlation of spontaneous and evoked magnetic field strength, assessed using both methodologies in the CamCAN dataset.

a Pseudotrial-corrected time courses for high prestimulus (red) and low prestimulus (blue) conditions. Line shows mean across all sensors and subjects, shaded area indicates standard error of the channel-average time course across subjects. Effect topographies are shown at 100 ms, 300 ms, 500 ms, and 700 ms; white dots indicate sensors which are part of a significant cluster. Shaded overbars indicate the significance of the difference between prestim high and low conditions. The shade of the bar indicates the percent of sensors which are part of a significant cluster at any given time point (i.e., darkest = all sensors part of cluster, lightest/white = no sensors part of cluster); red indicates positive clusters (prestim high > prestim low), blue indicates negative clusters. b Lines, overbars, and topographies as in a: red overbars indicate clusters with TTV increases, blue overbars indicate TTV decreases. c Correlation between the methodologies. Channel-average values of the summary index are plotted in the scatterplot, and the correlation coefficient at each electrode is plotted in the inset. White dots indicate sensors significant after cluster correction. N = 474 participants.