Spindle frequency activity in the sleep EEG: individual differences and topographic distribution
作者： Esther Werth , Peter Achermann , Derk-Jan Dijk , Alexander A. Borbély
DOI: 10.1016/S0013-4694(97)00070-9
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摘要: The brain topography of EEG power spectra in the frequency range sleep spindles was investigated 34 recordings from 20 healthy young men. Referential (F3-A2, C3-A2, P3-A2 and O1-A2) bipolar derivations (F3-C3, C3-P3 P3-O1) along anteroposterior axis were used. Sleep gave rise to a distinct peak spectrum. distribution frequencies pooled over subjects showed bimodal pattern with modes at 11.5 13.0 Hz, trough 12.25 Hz. large inter-subject variation (range: 1.25 Hz) contrasted small intra-subject between derivations, non-REM episodes different nights. In some individuals and/or only single spindle present. topographic distributions referential differences. declining trend consecutive low activity rising high range. functional heterogeneity conjunction stability their are important characteristics for analysis regulation on basis EEG.
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