Analysis of the Reactive Patterns of EEGs under Atrial Fibrillation

Resumo

Using nonlinear dynamics methods (wavelet and recurrence analysis) of electroencephalographic (EEG) patterns we have examined the photic driving reaction for patients with atrial fibrillation of the constant and paroxysmal forms. As quantitative parameters of this reaction we consider the coefficients of photic driving and holding, the times of remembering an external rhythm, and the values of wavelet coherence, as well as the average lengths of diagonal lines in joint recurrence plots of the light stimulus and EEG pattern. This study demonstrates the ability of the applied methods to quantitatively estimate the lability of the human brain to reproduce suggested rhythms for different patients.