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To study the electroencephalograph (EEG) background activity in patients with Alzheimer's disease (AD), power spectrum density estimated by AR model and Lempel-Ziv (LZ) complexity are employed. EEG signals are recorded with 16-channel scalp electrodes in 15 patients with probable AD and 15 age-matched normal control subjects, in a relax state with eyes closed. Analysis results demonstrate that both...
Weighted-permutation entropy (WPE) is modified from permutation entropy (PE), which recently has been proposed as a measurement for nonlinear time series. To explore the efficiency of this method and the features of seizure electroencephalogram (EEG) segments, we investigate the application of WPE in the complexity analysis for epileptic seizure detection based on EEG. It is found that the calculated...
In this paper limited penetrable visibility graph (LPVG) approach is introduced to analyze the background electroencephalograph (EEG) activity in Alzheimer's disease (AD) patients. LPVG provides a measure of transforming the time series, i.e., EEG, into complex networks, which has become a research hotspot in the field of cognitive neurodynamics. So in this work, LPVG is chosen as the center method...
Manual acupuncture(MA), as a mechanical action, can be equivalent to an external stimulus to the neural system. To explore the effect of MA on brain activities, we design an experiment that acupuncture at Zusanli acupoint with four different frequencies to obtain electroencephalograph (EEG) signals. Neural system is a complex nonlinear dynamics system that possesses strong nonlinear characteristic,...
Manual acupuncture (MA) is an effective therapeutic technique, which can be equivalent to an external mechanical stimulus to the neural system. However, the regulation and action mechanism of acupuncture is still unclear. In this paper, mutual information method and Lempel-Ziv complexity method (MILZC) are combined to investigate the effect of MA on the complexity of information communication between...
From the point of the complexity of knowledge, based on the complex adaptive system theory, combined with computer science and artificial intelligence theories, the author analyzes the complexity of enterprise knowledge management and provides a solution to help enterprises to establish their own knowledge management system.
A new approach for quantifying the relationship between brain activity patterns and acupuncture is presented by analyzing the spatio-temporal patterns in the electroencephalo-gram (EEG) using Lempel-Ziv (LZ) complexity analysis. In this paper, EEG signals are recorded simultaneously while acupuncturing at ‘Zusanli’ acupoint (St36) manually. The subjects are 5 acupuncture university students. Every...
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