Abstract
The study of brain electrical activities in terms of deterministic nonlinear dynamics has recently received much attention. Forbidden ordinal patterns (FOP) is a recently proposed method to investigate the determinism of a dynamical system through the analysis of intrinsic ordinal properties of a nonstationary time series. The advantages of this method in comparison to others include simplicity and low complexity in computation without further model assumptions. In this paper, the FOP of the EEG series of genetic absence epilepsy rats from Strasbourg was examined to demonstrate evidence of deterministic dynamics during epileptic states. Experiments showed that the number of FOP of the EEG series grew significantly from an interictal to an ictal state via a preictal state. These findings indicated that the deterministic dynamics of neural networks increased significantly in the transition from the interictal to the ictal states and also suggested that the FOP measures of the EEG series could be considered as a predictor of absence seizures. © 2009 The American Physical Society.
| Original language | English |
|---|---|
| Article number | 41146 |
| Journal | Physical Review E - Statistical, Nonlinear, and Soft Matter Physics |
| Volume | 79 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 1 Apr 2009 |
Publisher's Copyright Statement
- COPYRIGHT TERMS OF DEPOSITED FINAL PUBLISHED VERSION FILE: Ouyang, G., Li, X., Dang, C., & Richards, D. A. (2009). Deterministic dynamics of neural activity during absence seizures in rats. Physical Review E - Statistical, Nonlinear, and Soft Matter Physics, 79(4), [41146]. https://doi.org/10.1103/PhysRevE.79.041146. The copyright of this article is owned by American Physical Society.