Bispectral analysis of rat EEG during maturation

1 January 1988

conference paper
Published by Institute of Electrical and Electronics Engineers (IEEE)

p. 1218-1219 vol.3
https://doi.org/10.1109/iembs.1988.94881

Abstract

Bispectra were computed for EEGs obtained from frontal cortex and hippocampal formation in normally developed rats. Although the bispectrum serves many purposes, it is utilized here to detect the presence of and quantify (by computing the biocoherence function) the degree of quadratic phase coupling and provide a measure of the deviation from normality in the amplitude distribution of EEGs recorded from two different types of brain tissue during maturation. Preliminary findings indicate that significant quadratic phase coupling exists in the hippocampal EEG during REM sleep, when the hippocampal theta rhythm dominates the frequency distribution of the hippocampal EEG, and that the relative increase in the values of the frequencies involved in the phase coupling follow the maturation of the theta rhythm.

Keywords

This publication has 5 references indexed in Scilit:

Bispectral analysis of the rat EEG during various vigilance states
IEEE Transactions on Biomedical Engineering, 1989
Bispectrum estimation: A digital signal processing framework
Proceedings of the IEEE, 1987
Modeling the Stationarity and Gaussianity of Spontaneous Electroencephalographic Activity
IEEE Transactions on Biomedical Engineering, 1975
Statistical methods for investigating phase relations in stationary stochastic processes
IEEE Transactions on Audio and Electroacoustics, 1971
Estimation of the Bispectrum
The Annals of Mathematical Statistics, 1965