What Is the Default Mode Network? The default mode network (DMN) is a system of connected brain areas that show increased activity when a person is not focused on what is happening around them. The ...

When your mind is wandering, your brain’s “default mode” network is active. Its discovery 20 years ago inspired a raft of research into networks of brain regions and how they interact with each other.

A new study published in Nature Neuroscience sheds light on the structural foundations of the brain’s default mode network, a system of regions long associated with internally focused thought, memory, ...