title: [Brain Vigilance Analysis Based on the Measure of Complexity].
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.
authors.forename: Yunlong
authors.initials: Y
authors.lastname: Zhao
authors.forename: Xuemin
authors.initials: X
authors.lastname: Wang
authors.forename: Ranting
authors.initials: R
authors.lastname: Xue
authors.forename: Xiaolu
authors.initials: X
authors.lastname: Wang
authors.forename: Xiang
authors.initials: X
authors.lastname: Gao
authors.forename: Dong
authors.initials: D
authors.lastname: Ming
authors.forename: Hongzhi
authors.initials: H
authors.lastname: Qi
authors.forename: Peng
authors.initials: P
authors.lastname: Zhou
mesh_terms: D001288:Attention; D001921:Brain / Q000502:physiology*; D004569:Electroencephalography; D019277:Entropy; D006801:Humans; D008433:Mathematics