Fig. 2: The relationship between length of dataset and stability of pairwise correlations.

Plots show the mean (10,000 iterations) difference between the two correlation matrices calculated from randomly selected (1-h inter-ictal segments) datasets with lengths of n and n − 1 hours. We use the matrix norm to quantify the difference between correlations matrices. The shaded-area around the means (dashed line) highlights the standard error, and colors indicate the frequency bands.