Adolescence and Developmental Psychology Practice Test

Attention during adolescence is shaped by the maturation of the prefrontal cortex, the brain region that provides top-down control over what we focus on, how long we stay on a task, and how well we resist distractions. As this area develops—through processes like myelination and synaptic pruning and by strengthening connections with other brain networks involved in attention (such as frontoparietal and anterior cingulate circuits)—teens become better at sustaining focus, filtering irrelevant information, and shifting attention when needed. This ongoing brain development explains why attention continues to improve through adolescence and into early adulthood, even as practice, sleep, and environment also play important roles. In contrast, attention is not fully mature at birth, it is not about muscle memory, and it is not unrelated to brain structure; all of those ideas miss the link between attentional control and the maturation of the brain's executive networks.