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. Author manuscript; available in PMC: 2022 Mar 1.
Published in final edited form as: J Clin Neurophysiol. 2021 Mar 1;38(2):112–123. doi: 10.1097/WNP.0000000000000807

Figure 6.

Figure 6.

A) An example of an HD-EEG recording showing abundant IEDs over the right centroparietal region. IEDs selected for averaging designated by vertical lines. Data were bandpass filtered from 2 to 55Hz. B) Voltage tracing of 39 representative IEDs averaged. C) Dipole (green) and ESI estimation (heat map, sLORETA) at the mid-point of the rising slope of the averaged IEDs both localized to the peri-Rolandic frontal operculum. Subsequent depth electrode placements are shown in blue. D) Morphometric analysis revealed an abnormality (red circle), co-localizing with the region indicated by HD-EEG and invasive recording.