 Obsessive compulsive disorder, OCD, is a mental illness characterized by intrusive thoughts and compulsive behavioral patterns. In this study, researchers examined the differences in brain activity between people with OCD and those without it. They found that people with OCD had less synchronicity in their brains, meaning they were less connected than those without the condition. Additionally, they observed changes in the efficiency of communication between different parts of the brain, suggesting that people with OCD may be more likely to process information differently than those without the condition. This article was authored by Bo Tan, Jing Yan, Jun Jun Zhang, and others.