A Nonstationary Analysis of the Electroencephalogram
Nobuo Kawabata · IEEE Transactions on Biomedical Engineering · 1973
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.