[Application of EEG coherence analysis for evaluation of the brain integrative activity in schizophrenia]

In this review we aim to systematize the evidence on changes in schizophrenic brain functional connectivity assessed with EEG coherence and phase synchrony analyses. Main findings on EEG coherence in schizophrenic patients at rest and during different activation tasks are described. The studies point to specific patterns of cortical connectivity in schizophrenia, specifically, to the disturbance of certain paths of integration related to symptoms and cognitive dysfunction. These data are in line with the disconnection hypothesis of the disorder.