Fig. 2: Ultradian rhythm of delta power is diminished in brain areas with pathology.
From: Diminished circadian and ultradian rhythms of human brain activity in pathological tissue in vivo
a–c From subject A: (a) An ultradian rhythm of delta power, obtained by applying a band-pass filter to isolate the power of the signal with a period between 3 and 6 hours. Pathological tissue is shown in red. Bars indicate the relative power of the signal in each ROI. b The relative power of the ultradian rhythm (3–6 h) in each brain area, pathological tissue is outlined in red, no recording was performed in grey areas. c The AUC of each subject when predicting pathology from the power of each ultradian rhythm. An AUC > 0.5 indicates that the rhythm is diminished in pathological tissue. Dashed lines indicate median and quartiles of the distribution. Brain plots from ref. 50. Source data are provided as a Source Data file.
