Review of complex network analysis for MEG

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Magnetoencephalography (MEG) is a technique to record oscillatory magnetic fields coming from ongoing neuronal activity.Functional brain activities performing cognitive or physiological tasks are performed on structural connections between neurons or brain regions.MEG data can be characterized as highly correlated, spatio-temporal, multidimensional, multilayered dynamic networks.Due to its complex structure, many studies on MEG network have not yet been conducted.In this study, we will explain the concept, necessity, and possible approaches of MEG network analysis.We reviewed the characteristics of MEG data.Network measures and potential network models in MEG and clinical studies are also reviewed.