Paper Abstract and Keywords |
Presentation |
2007-10-11 13:00
Analysis of biophysiological variability related to stress by using EEG and ECG Takuto Hayashi, Yuko Mizuno-Matsumoto, Eika Okamoto (Univ. Hyogo), Ryouhei Ishii (Osaka Univ.), Satoshi Ukai, Kazuhiro Shinosaki (Wakayama Med. Univ.), Hiroshi Inada (Univ. Hyogo) MBE2007-54 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We studied the biophysiological changes of brain function and autonomic nervous system under emotional stress using electroencephalogram (EEG) and electrocardiogram (ECG), respectively. Twenty-two subjects were assessed their stress levels with a questionnaire method and were divided into stress and non-stress groups. We evaluated time-frequency changes of EEG and heart rate interval variabilities of ECG with discrete Fourier transform (DFT). As a result, relative power spectra of theta and alpha band EEG in non-stress group increased significantly under unpleasant stimuli, while those in stress group decreased. The results suggest that brain activity in a healthy condition could resist an emotional stress. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
stress / emotion / electroencephalogrphy / autonomic nervous system / biological resistance / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 248, MBE2007-54, pp. 17-20, Oct. 2007. |
Paper # |
MBE2007-54 |
Date of Issue |
2007-10-04 (MBE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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MBE2007-54 |
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