Phase Synchronization Dynamics of Neural Network during Seizures

Figure 1

ECoG information of Study 037 and one example of the corresponding phase synchronization connectivity matrix. Electrodes positions of the grid RPG are shown in (a) and 64 channels of ECoG signals recorded from the grid are shown in (b). The left red vertical line means the onset time of this seizure and the right red vertical line represents the termination time. The seizure period is divided into four stages evenly, named “S1–S4”, and preS and postS represent the period before the onset and after the termination of seizure with a duration of a quarter of the seizure period, respectively. Phase synchronization connectivity matrix in the 47–48 s time window of broadband signals is displayed in (c).

(a)

(b)

(c)