NONLINEAR PHENOMENA IN COMPLEX SYSTEMS
An Interdisciplinary Journal

2005, Vol.8, No.4, pp.373-379


Effect of Microwave Fields on Brain Electrical Activity. Analysis by Discrete Wavelet Tools.
M.V. Voitikova

The discrete wavelet-based multiresolution analysis and windowed Fourier transform were applied to investigation of encephalic activity evoked by external microwave field. It is shown, that intensive microwave fields stimulate the high-amplitude slow-wave activity in brain which was definitely identified by the means of wavelet entropy and distribution of the oscillation energy. It was shown that the wavelet analysis is more appropriate for electroencephalography records with fast changing dynamics than Fourier transform or nonlinear dynamics methods.
Key words: discrete wavelet, Fourier analysis, EEG, microwave field, brain oscillation, entropy

Full text:  Acrobat PDF  (187KB)   PostScript (6349KB)   PostScript.gz (310KB)



ContentsJournal Home Page

Copyright © Nonlinear Phenomena in Complex Systems. Last updated: December 13, 2005