Abstract
Analysis of electroencephalogram (EEG) is presented for sleep physiology. This analysis is performed by the Instantaneous Maximum Entropy Method (IMEM), which was given by the author. Appearance and continuation of featuristic waves are not steady in EEG. The characteristics of these waves responding to epoch of sleep are analyzed. The behaviours of waves were clarified by this analysis as follows; (a) time dependent frequency of continuous oscillations of alpha rhythm was observed precisely. Sleep spindles were detected clearly within NREM and these parameters of time, frequency, and peak energy were specified, (b) delta waves with very low frequencies and sleep spindles were observed simultaneously. And (c) the relationship of sleep spindles and delta waves was first detected with negative correlation along time-axis. The analysis by the IMEM was found effective comparing conventional analysis method of FFT, bandpass filter bank, etc.
| Original language | English |
|---|---|
| Pages (from-to) | 965-970 |
| Number of pages | 6 |
| Journal | IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |
| Volume | E80-A |
| Issue number | 6 |
| Publication status | Published - 1997 |
| Externally published | Yes |
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Keywords
- Electroencephalogram (EEG)
- Instantaneous maximum entropy method
- NREM
- REM
- Sleep physiology
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Hardware and Architecture
- Information Systems
Cite this
Human sleep electroencephalogram analysis based on the Instantaneous Maximum Entropy Method. / Uchida, Sunao; Takizawa, Yumi; Hirai, Nobuhide; Ishiguro, Makio.
In: IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E80-A, No. 6, 1997, p. 965-970.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Human sleep electroencephalogram analysis based on the Instantaneous Maximum Entropy Method
AU - Uchida, Sunao
AU - Takizawa, Yumi
AU - Hirai, Nobuhide
AU - Ishiguro, Makio
PY - 1997
Y1 - 1997
N2 - Analysis of electroencephalogram (EEG) is presented for sleep physiology. This analysis is performed by the Instantaneous Maximum Entropy Method (IMEM), which was given by the author. Appearance and continuation of featuristic waves are not steady in EEG. The characteristics of these waves responding to epoch of sleep are analyzed. The behaviours of waves were clarified by this analysis as follows; (a) time dependent frequency of continuous oscillations of alpha rhythm was observed precisely. Sleep spindles were detected clearly within NREM and these parameters of time, frequency, and peak energy were specified, (b) delta waves with very low frequencies and sleep spindles were observed simultaneously. And (c) the relationship of sleep spindles and delta waves was first detected with negative correlation along time-axis. The analysis by the IMEM was found effective comparing conventional analysis method of FFT, bandpass filter bank, etc.
AB - Analysis of electroencephalogram (EEG) is presented for sleep physiology. This analysis is performed by the Instantaneous Maximum Entropy Method (IMEM), which was given by the author. Appearance and continuation of featuristic waves are not steady in EEG. The characteristics of these waves responding to epoch of sleep are analyzed. The behaviours of waves were clarified by this analysis as follows; (a) time dependent frequency of continuous oscillations of alpha rhythm was observed precisely. Sleep spindles were detected clearly within NREM and these parameters of time, frequency, and peak energy were specified, (b) delta waves with very low frequencies and sleep spindles were observed simultaneously. And (c) the relationship of sleep spindles and delta waves was first detected with negative correlation along time-axis. The analysis by the IMEM was found effective comparing conventional analysis method of FFT, bandpass filter bank, etc.
KW - Electroencephalogram (EEG)
KW - Instantaneous maximum entropy method
KW - NREM
KW - REM
KW - Sleep physiology
UR - http://www.scopus.com/inward/record.url?scp=0031170682&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0031170682&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0031170682
VL - E80-A
SP - 965
EP - 970
JO - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
JF - IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
SN - 0916-8508
IS - 6
ER -