A Dynamic Core Network and Global Efficiency in the Resting Human Brain

This study presents 2 novel findings on the fundamental issue of how different brain regions or networks interact in the resting state. First, we demonstrate the existence of multiple dynamic hubs that allow for across-network coupling. Second, dynamic network coupling and related variations in hub centrality correspond to increased global efficiency. These findings suggest that the dynamic organization of across-network interactions represents a property of the brain aimed at optimizing the efficiency of communication between distinct functional domains (memory, sensory-attention, motor). They also support the hypothesis of a dynamic core network model in which a set of network hubs alternating over time ensure efficient global communication in the whole brain.

Source: Cerebral Cortex - September 18, 2016 Category: Neurology Authors: de Pasquale, F., Della Penna, S., Sporns, O., Romani, G. L., Corbetta, M. Tags: Original Articles Source Type: research