Fig. 5.

Spatial distribution of largest beta/HFO power and PAC across recording sites. All plots show histograms with the number of observations. Panel A depicts the distribution of recording sites relative to the surgical target point. The relative locations of largest power and PAC within nuclei are shown in panel B. Although largest beta and HFO power occurred at the same recording site in half of the nuclei, HFO tended to peak at slightly more superior sites for the other nuclei. Panel C depicts the distribution of recording sites relative to the fixation site of contact C0. The range spanned by the implanted lead is indicated in the Figure. This reveals that several sites with largest power or PAC are not covered by the lead after implantation. In all cases, positive distances indicate more superior locations. For nuclei with 5 recording sites available the relative distance between sites with maximum power or PAC did not exceed 6 mm. The nucleus where contact C0 was fixated at − 1 mm was discarded from the relative to fixation site histogram.