Brain connectivity over time (IMAGE) Aalto University Caption Restless sleep correlates with lower connectivity between the default mode network nodes, and default mode network and somatomotor network nodes. The default mode network is a group of brain regions that are active when we are at rest, not focusing on any specific task. The somatomotor network involves brain regions that are responsible for controlling movement and processing sensations from the body, such as touch and physical feedback. Credit Ana Triana et. al / Aalto University Usage Restrictions For non-commercial distribution, please credit. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.