There’s a growing body of research that suggests that kids who suffer from ADD & ADHD are actually suffering from some kind of sensory integration disorder. A quick comparison for “normals” – you know how you feel after you’ve been in a too-loud nightclub or bar for a little too long? Distracted, irritable, not able to sit or stand or do any one thing?
Sensory integration disorder is like being that way all the time.
So here’s the kicker – this should imply that these kids once treated (including by just stimulants) should outperform normal kids in tasks that require assimilating lots of data.