News Finding: They could even see that the lags in connection development with the two task-related networks -- the frontoparietal and ventral attention networks -- were located primarily in two specific areas of the brain.
Paper Finding: We found significant and specific maturational lag in connections within default mode network (DMN) and in DMN interconnections with two task positive networks (TPNs): frontoparietal network and ventral attention network.
News Context: The researchers found lags in development of connection within the internally-focused network, called the default mode network or DMN, and in development of connections between DMN and two networks that process externally-focused tasks, often called task-positive networks, or TPNs. They could even see that the lags in connection development with the two task-related networks -- the frontoparietal and ventral attention networks -- were located primarily in two specific areas of the brain. The new findings mesh well with what other researchers have found by examining the physical structure of the brains of people with and without ADHD in other ways.
Paper Context: We found significant and specific maturational lag in connections within default mode network (DMN) and in DMN interconnections with two task positive networks (TPNs): frontoparietal network and ventral attention network. In particular, lag was observed within the midline core of the DMN, as well as in DMN connections with right lateralized prefrontal regions (in frontoparietal network) and anterior insula (in ventral attention network). Our finding of maturational lag specifically in connections within and between these networks suggests a developmental etiology for the deficits proposed in these models.