Dysfunctional default mode and visual networks underlie cognitive deficits in dementia with Lewy bodies: a resting-state fMRI study.

Summary: Imagine your brain is a bustling city with different neighborhoods that need to talk to each other to work properly. In people with Dementia with Lewy Bodies (DLB), the communication lines between the "daydreaming" neighborhood (the default mode network) and the "seeing" neighborhood (the visual network) start to break down. In a recent study, doctors used special brain scans on over 100 people. They found that these broken connections make it harder for patients to think clearly and remember things. The exciting news is that these brain scans could one day act as an early warning system to help doctors diagnose and track the disease much better!