DMN

"The disrupted communication between the DMN and SN can make it harder to focus, control impulses, or feel motivated without the drug," said Li-Ming Hsu, PhD, assistant professor of radiology and lead author on the study.

The DMN is active during daydreams and reflections, the SN is crucial for attentiveness, and the CEN, much like a musical conductor, plays a role in our decision-making and problem-solving.

Over a period of 10 days followed by abstinence, researchers observed significant alterations in network communication, particularly between the DMN and SN.

The DMN and the posterior insula are involved in how people sense their body, the sense of self and their internal reflections.

New studies are finding the DMN plays an important role in most mental health problems -- and may be influenced by experiencing childhood trauma.