Generally higher ADHD symptoms were associated with poorer cognitive performance in the MA cohort. However, higher levels of inattention symptoms were associated with better verbal ability in both cohorts. Surprisingly, greater hyperactivity was associated with better task-switching abilities in older adults.

Is hyperactivity a cognitive disorder?

Many adults and children living with ADHD never have had significant behavior problems; they have difficulty focusing their attention on necessary tasks and using working memory effectively, making ADHD a cognitive disorder, a developmental impairment of executive functions (EFs) — the self-management system of the ...

How does ADHD influence children's development?

If ADHD is left untreated, it can start to take a toll on a child's development. They may develop poor self-esteem, they'll continue to have trouble interacting with others, and they are at an increased risk for developing a substance use disorder.