Citation

Zhao Y, Wang X, Xue R, Wang X, Gao X, Ming D, Qi H, Zhou P. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2015; 32(4): 725-729.

Copyright

(Copyright © 2015, Sichuan Sheng sheng wu yi xue gong cheng xue hui)

DOI

unavailable

PMID

26710439

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.

Language: zh