Title :
A Nonstationary Analysis of the Electroencephalogram
Author_Institution :
Electrotechnical Laboratory, Ministry of International Trade and Industry, Tokyo, Japan.
Abstract :
A statistical technique is described which allows description of the statistical characteristics of nonstationary electroencephalograms (EEG´s). The EEG is investigated in terms of its nonstationary power spectrum. The instantaneous power spectra of certain transition processes in the EEG (the evolution and blocking of the alpha wave) are calculated and described on the time-frequency plane.
Keywords :
Anatomy; Brain modeling; Electroencephalography; Eyes; Fluctuations; Fourier transforms; International trade; Signal analysis; Spectral analysis; Time frequency analysis; Adult; Alpha Rhythm; Child; Darkness; Electroencephalography; Female; Humans; Light; Male; Mathematics; Reaction Time;
Journal_Title :
Biomedical Engineering, IEEE Transactions on
DOI :
10.1109/TBME.1973.324218
