Local Non-Stationary Nature of Brain Waves from Demented Persons

Local Non-Stationary Nature of Brain Waves from Demented Persons

In the present paper, we show the local non-stationary nature of brain waves from demented persons by reconstructing various stochastic processes of averaged local quantities, e.g. , fractal dimension, mean, variance, skewness and kurtosis. The characteristic random dynamic features of their local q...

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Veröffentlicht in:JPN J APPL PHYS PART 1 REGUL PAP SHORT NOTE REV PAP 2001-04, Vol.40 (4R), p.2570-2579
Hauptverfasser: Saji, Ryoya, Konno, Hidetoshi
Format: Artikel
Sprache:eng
Schlagworte:
Computerized tomography
Magnetic resonance imaging
Medical imaging
Random processes
Wavelet transforms
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Zusammenfassung:In the present paper, we show the local non-stationary nature of brain waves from demented persons by reconstructing various stochastic processes of averaged local quantities, e.g. , fractal dimension, mean, variance, skewness and kurtosis. The characteristic random dynamic features of their local quantities are discussed in the two-dimensional (2D) phase space. The availability of their local non-stationary nature for diagnosing senile dementia is also discussed.
ISSN:0021-4922
1347-4065
DOI:10.1143/JJAP.40.2570