Alpha blocking and 1/fβ spectral scaling in resting EEG can be accounted for by a sum of damped alpha band oscillatory processes
Fig 5
Experimental and model spectral scaling in EC and EO states.
(a) Probability distribution of experimental spectral scaling exponent (βE) for EC (blue) and EO (red) states with data set 1 and 2 pooled for analysis. (b) Same as (a) but for optimal model fit spectral scaling exponent (βM). (c) Scatter plot of the experimentally determined spectral scaling parameter (βE) versus the model calculated spectral scaling parameter (βM) for EC (dots—blue) and EO resting state (dots—red). The experimental and model fit scaling parameters are well correlated across both recording conditions (EC: r = 0.64, p = 10−6 / EO: r = 0.81, p = 10−6). Statistical significance calculated via a nonparametric permutation test.