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Characterization of Neural Activity Using Complex Network Theory

An Application to the Study of Schizophrenia

Javier Gomez-Pilar

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Springer International Publishing img Link Publisher

Naturwissenschaften, Medizin, Informatik, Technik / Allgemeines, Lexika

Beschreibung

This book reports on the development and assessment of a novel framework for studying neural interactions (the connectome) and their dynamics (the chronnectome). Using EEG recordings taken during an auditory oddball task performed by 48 patients with schizophrenia and 87 healthy controls, and applying local and network measures, changes in brain activation from pre-stimulus to cognitive response were assessed, and significant differences were observed between the patients and controls. This book investigates the source of the network abnormalities and presents new evidence for the disconnection hypothesis and the aberrant salience hypothesis with regard to schizophrenia. Moreover, it puts forward a novel approach to combining local regularity measures and graph measures in order to characterize schizophrenia brain dynamics, and presents interesting findings on the regularity of brain patterns in healthy control subjects versus patients with schizophrenia. Besides providing new evidence for the disconnection hypothesis, it offers a source of inspiration for future research directions in the field.

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Schlagwörter

Evoked Response, Neural Network Modeling, Evidence for Disconnection Hypothesis, Wavelet Entropy, Time-frequency Assessment, Neural Pathways, Neural Synchronization, Spectral Entropy, Schizophrenia Heterogeneity, Schizophrenia Underpinnings, Brain Complexity, Schizophrenia Subgroups, Task-related Activity, Neural Coupling, Aberrant Salience in Schizophrenia, Neural Dynamics in Schizophrenia