" In Silver’s model this injured filter system, which is regulated by the catecholamines, doesn’t screen out irrelevant information and sensory stimuli as efficiently as it should, thereby letting everything that registers at the desk of the reticular activating system arrive in the rooms of the frontal regions of the brain. The individual is bombarded, taking care of ten thousand guests in a hotel built for one thousand, on overload all the time, receiving messages about every minute aspect of his or her experience. It is no wonder, then, that the individual would be distractible or, as Silver would argue, inclined to withdraw from it all and shut the damned hotel down. "

― Edward M. Hallowell , Driven to Distraction: Recognizing and Coping with Attention Deficit Disorder from Childhood Through Adulthood