Analysis of the EEG information of rats epileptic model using unstable periodic orbits
Xu, M.; Xia, P.; Yu, B.; Yang, J.; Yan, W.; Qiu, B.; Chen, S.; Guo, X.
Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 22(3): 584-587
2005
ISSN/ISBN: 1001-5515 PMID: 16013265 Document Number: 594055
In order to further research into the EEG information of rats epileptic model, we applied different nonlinear dynamic methods. After having analyzed the EEG signal of rat falling sickness by means of approximate entropy and correlation dimension, we adopted a the new method, unstable periodic orbits, which was used to analyze complex activity of neurons system to look for the change regularity of change in the EEG signal in the whole course of rat's falling sickness. We found period 1 orbits and period 2 orbits to be statistically significant in the data of ictal time of epilepsy. At the same time, we found period 1 orbits to be statistically significant in the data of preictal time of epilepsy.