The Analysis of the DMN Network of the Brain Using the Method of Segmentation of Functionally Homogeneous Regions

The human brain contains many functional networks: regions whose dynamics are correlated. One of the largest and least explored is the default mode network (DMN). The existence of this network, as well as the tasks that the brain performs during the activity of this network, are still hypotheses. Many studies show signs of the presence of this network. In this paper, we explore the DMN using a new method for segmentation functionally homogeneous regions. Obtained result shows the predominance of significant connections between DMN regions, which confirms the generally accepted hypothesis about the work of the brain at rest. In addition, there are clusters of significant connections for the regions of the parahippocampal regions and the amygdala. Also, a high level of significance was shown by the connections of the DMN regions with regions that are not included in the clusters of significant connections.