This study , published in April of 2008, is research looking at how children with ADHD are motivated. The task they were given involved time estimation. These children tended to have more variability in their time estimations. The article suggested poor time estimation might be a deficit in ADHD.
Quote: "Children were required to estimate a 1-s* interval. Children with ADHD underestimated more severely the interval and responded more variably than controls. The study suggests that children with ADHD suffer from motivation problems when reinforcement was not available. Underestimations of time may reflect more stable deficits in ADHD."
* second
