Fig. 5: iEEG properties from time periods deemed ‘normal’ in patients who were implanted and assessed during resting state.

a, Left: power-spectrum density plots of all channels (n = 4279) and hippocampal channels (<5 mm from any hippocampal midthickness vertex) (n = 81), lines show mean ± s.d. shaded. Right: log normal power within each band for each hippocampal channel, with vertical lines indicating the median and with corresponding bands from all channels in gray. b, Spatial extrapolation weighted by geodesic distance shows largely anterior–posterior differences in band powers. c, Power-spectrum densities reduced into primary diffusion map embedding components. Scale bars are arbitrary unless indicated otherwise.