Delta- and gamma-activity of resting state EEG as one of markers of risk of depressive disorders in migrants of subpolar and polar regions of Siberia

摘要

It is well known, the activates of resting-state functional networks (RSNs), including the brain default-mode network (DMN) and the central executive network (CEN) is associated with inclination to various mental disorders in humans. At this study, it can be assumed that both the process of adaptation to the polar climate and new social conditions, and the gradual reduction of the risk of depression among migrants, are due to functional changes within these two brain systems, as well as their functional relationships among themselves. Hypothetically, the increased activity of CEN is connected with a higher level of stress associated with moving to new living conditions, whereas the increasing activation of posterior hub of DMN is associated with higher risk of depression.