Extended detrended fluctuation analysis of sound-induced changes in brain 
electrical activity

Pavlov, A.N.; Dubrovsky, A.I.; Koronovskii Jr, A.A.; Pavlova, O.N.; Semyachkina-Glushkovskaya, O.V.; Kurths, Jürgen

doi:10.1016/j.chaos.2020.109989

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Extended detrended fluctuation analysis of sound-induced changes in brain electrical activity

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Pavlov, A.N.
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Dubrovsky, A.I.
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Koronovskii Jr, A.A.
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Pavlova, O.N.
External Organizations;

Semyachkina-Glushkovskaya, O.V.
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/persons/resource/Juergen.Kurths

Kurths, Jürgen
Potsdam Institute for Climate Impact Research;

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Pavlov, A., Dubrovsky, A., Koronovskii Jr, A., Pavlova, O., Semyachkina-Glushkovskaya, O., Kurths, J. (2020): Extended detrended fluctuation analysis of sound-induced changes in brain electrical activity. - Chaos, Solitons and Fractals, 139, 109989.
https://doi.org/10.1016/j.chaos.2020.109989

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We discuss the problem of revealing structural changes in rat electroencephalograms (EEG) caused by activation of the brain lymphatic drainage function due to a sound-induced stress. For this purpose, we apply the detrended fluctuation analysis (DFA) with its extended version to characterize long-range power-law correlations associated with the slow-wave dynamics of the electrical activity of the brain. The proposed extended DFA (EDFA) provided a stronger separation of groups of rats with different permeability of the blood-brain barrier (BBB) compared to the conventional DFA technique. We argue that such abilities of this tool can be useful in other diagnostic-related studies.