New studies using brain imaging:
The studies show two types of network within the brain, a resting one and an active one.
In children and adults with ADHD, the resting one does not function properly – two major parts of it do not synchronize with each other.
In adults who had ADHD as children, but seem to have recovered, this synchronizing of the two parts of the resting network has returned to normal.
However, in both the adults who have recovered and those who have not recovered from childhood ADHD, there remains another abnormality; the resting and task networks always both remain active, instead of the normal process of only one functioning at a time, depending on whether you are resting or performing a task. This abnormality appears related to impaired executive functioning.
In other words, the brain is pushing both the brake pedal and the accelerator pedal at the same time. And isn’t that kind of the way it feels?
the above is from: