Berlin 2008 – wissenschaftliches Programm
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DY: Fachverband Dynamik und Statistische Physik
DY 29: Poster II
DY 29.23: Poster
Donnerstag, 28. Februar 2008, 16:00–18:00, Poster C
Long-term correlations in human brain oscillations during sleep — •Fabian Gans1, Aicko Schumann1, Thomas Penzel2, and Jan Kantelhardt1 — 1Institut für Physik, MLU Halle, Germany — 2Charité Center for Cardiology, Berlin, Germany
The human brain spontaneously generates complex oscillations in different frequency bands, which can be recorded by electro-encephalography (EEG). Studying time series of the spontaneous amplitude of the oscillations in several frequency bands, we observe long-term correlated fluctuations as well as nearly uncorrelated fluctuations. The correlation behaviour is compared with similar long-term correlations observed in autonomously regulated functions, i.e., heartbeat, blood pressure and respiration during different sleep stages representing different physiological modes.