Study of phase synchronization in multichannel seizure EEG using nonlinear recurrence measure
Phase synchronization in brain using recurrence plot based technique is studied. A novel application of the technique to multichannel seizure EEG data is made. Contour plots of Correlation between Probability of Recurrence (CPR) matrix show clear contrast between seizure and pre-seizure signals and a classification accuracy of 100% has been achieved. CPR could identify the focus of epilepsy and the identification is much better than that obtained using linear correlation. The paper has shown the utility of a nonparametric nonlinear model in studying synchronization in the brain.
phase synchronization recurrence plot correlation between probabilities of recurrence linear correlation multichannel eeg epileptic seizure brain headmap