Brain Vigilance Analysis Based on the Measure of Complexity.
- Author:
Yunlong ZHAO
;
Xuemin WANG
;
Ranting XUE
;
Xiaolu WANG
;
Xiang GAO
;
Dong MING
;
Hongzhi QI
;
Peng ZHOU
- Publication Type:Journal Article
- MeSH:
Attention;
Brain;
physiology;
Electroencephalography;
Entropy;
Humans;
Mathematics
- From:
Journal of Biomedical Engineering
2015;32(4):725-729
- CountryChina
- Language:Chinese
-
Abstract:
Vigilance is defined as the ability to maintain attention for prolonged periods of time. In order to explore the variation of brain vigilance in work process, we designed addition and subtraction experiment with numbers of three digits to induce the vigilance to change, combined it with psychomotor vigilance task (PVT) to measure this process of electroencephalogram (EEG), extracted and analyzed permutation entropy (PE) of 11 cases of subjects' EEG and made a brief comparison with nonlinear parameter sample entropy (SE). The experimental results showed that: PE could well reflect the dynamic changes of EEG when vigilance decreases, and has advantages of fast arithmetic speed, high noise immunity, and low requirements for EEG length. This can be used as a measure of the brain vigilance indicators.
