PMID: 591200Jan 1, 1977

Component activities in the autoregressive activity of physiological systems

The International Journal of Neuroscience
K SatoK Fukata

Abstract

The higher-order autoregressive (AR) activity of a physiological system (Sato 1975a,b; Sato et al., 1977) was decomposed into first- and second-order activities. The former time-pattern displays a fast rise and an exponential decay, while the latter exhibits a damped sine wave. Application of this component analysis to EEG showed the first-order activity to coincide with the nonoscillatory delta component. The frequency distribution of the natural, damped and resonance frequencies of the second-order activities was found to show one, two or three modes in each frequency range of the delta, theta and beta rhythms in ninety normal adult EEGs. Hence, the second-order activities agree with the oscillatory delta, theta, alpha and beta rhythms. Some changes were induced not only in the frequency of theta and beta rhythms but also in that of alpha rhythm by over-breathing for about three minutes.

References

Jan 1, 1975·The Journal of Pharmacy and Pharmacology·J J Freeman, F Sulser
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Citations

Jul 1, 1980·Electroencephalography and Clinical Neurophysiology·T InouyeK Matsumoto
Sep 1, 1990·Electroencephalography and Clinical Neurophysiology·T InouyeS Ukai
Dec 1, 1995·Acta Paediatrica Japonica; Overseas Edition·M KojoK Yamada
Dec 1, 1996·Acta Paediatrica Japonica; Overseas Edition·H SawaguchiK Sato
Jan 1, 1979·The International Journal of Neuroscience·G ChibaK Fukata
Feb 1, 1982·The International Journal of Neuroscience·K OnoM Yamashita
Jul 1, 1996·The International Journal of Neuroscience·K SATOY Hishikawa
Jan 1, 1981·The International Journal of Neuroscience·K OnoK Mori
Sep 20, 2005·International Journal of Psychophysiology : Official Journal of the International Organization of Psychophysiology·Erol Başar
Jun 12, 1999·Pediatrics International : Official Journal of the Japan Pediatric Society·M KojoT Ogawa

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