Analyzing synchronization of neural populations from the EEG – Model considerations

Objective: In order to gain a better understanding of the underlying neuronal processes, the interdependence between brain regions is studied for a variety of applications using surface (scalp EEG) and/or intracranial recordings (ECoG or depth EEG). For example, in the field of seizure prediction, the synchronization between EEG channels is analyzed in order to evaluate whether consistent precursors for epileptic seizures can be found. Yet, the question arises to what extent changes in the interaction of the underlying neuronal populations can be detected by analyses of macroscopic EEG recordings. Methods: We us…