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. 2021 Jul 6;15(6):1023–1053. doi: 10.1007/s11571-021-09692-z

Fig. 13.

Fig. 13

Multifractal spectral width for cross-correlated electrodes F4 and O2. The relation of α (q-order singularity exponent) and f(α) (dimension of the series) represents the multifractal spectrum. Δα (= αmax – αmin) is the spectral width. The parabolic nature and the peak at α > 0.5 indicate presence of multifractal properties (Ihlen 2012)