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ON THE LINEAR MODEL OF THE BRAIN ACTIVITY IN ELECTROENCEPHALOGRAPHIC POTENTIAL
Author(s) -
Sato Kensuke
Publication year - 1963
Publication title -
psychiatry and clinical neurosciences
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.609
H-Index - 74
eISSN - 1440-1819
pISSN - 1323-1316
DOI - 10.1111/j.1440-1819.1963.tb00690.x
Subject(s) - electroencephalography , neuroscience , autocorrelation , stimulation , impulse (physics) , impulse response , fourier transform , afferent , resting state fmri , psychology , physics , mathematics , mathematical analysis , statistics , quantum mechanics
Summary Assuming that the electroencephalographic potential fluctuation is caused by afferent stimulations to the EEG generator system in the brain, even in a resting relaxed state, its autocorrelation function and Fourier transform theoretically indicate not only the average respanse of the brain to a single superthreshold impulse in the time and frequency domains respectively. Theoretically, the crosscorrelation function of experimental stimulation and electroencephalographic potential fluctuation, and its Fourier transform have a similar physiological significance. The above theoretical point of view, therefore, suggests that some new activities of the brain may be detected by appropriate processing of electroencephalographic data observed in various portions of the brain under manifold conditions. It was also pointed out that one of the cause to yield the high harmonic response during a rhythmic stimulation lies in the stimulation itself.