Brain Vigilance Analysis Based on the Measure of Complexity / 生物医学工程学杂志
Journal of Biomedical Engineering
; (6): 725-729, 2015.
Article
ي Zh
| WPRIM
| ID: wpr-359577
المكتبة المسؤولة:
WPRO
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.
النص الكامل:
1
الفهرس:
WPRIM
الموضوع الرئيسي:
Physiology
/
Attention
/
Brain
/
Entropy
/
Electroencephalography
/
Mathematics
المحددات:
Humans
اللغة:
Zh
مجلة:
Journal of Biomedical Engineering
السنة:
2015
نوع:
Article