Characteristics of the Balance of Resting State Networks after Migration to the Conditions of the North.

We report here a study of 45 students (all men) of different ethnicities (mainly Tajik and Kyrgyz) aged 17–28 years, who moved to the North (Yakutsk, Republic of Sakha (Yakutia)). The study addressed the balance of connectivity of resting state networks in study condition 1, when participants entered new and unfamiliar living conditions, and in study condition 2, when subjects had lived in these conditions for one year. The 128-channel EEG was recorded at rest. Connectivity between nodes of the resting state networks and the rest of the brain was calculated. Connectivity contrasts the attention networks vs default mode network in conditions 1 and 2 were performed. Condition 1 was characterized by a predominance of attention networks over the default mode network of the brain, which may be associated with an increase in attention focused on the perception of new stimuli and tasks in the new conditions. In condition 2, after living in these environmental conditions for one year, the balance of the resting state networks shifted towards a predominance of the brain's default mode network over the attention networks. [ABSTRACT FROM AUTHOR]