Originally Posted by Toasted
Being AD/HD and having a parent who has worked in special education for many, many years, I can give my personal experience and her study/observation as this(in simplistic words, of course): people with ADD have a tendency (almost all, in fact) to be great with anything like geometry. If it can be seen/expressed in pictures or touched and felt, it's easily grasped. She told me the reason for it, but I can't remember it now.
AD/HD is one of the most researcher disorders in psychology/psychiatry. No well designed, controlled study has found an advantage to having AD/HD. It's a deficit, after all. If someone has AD/HD, it becomes so ingrained in the cognition and personality that an individual is very unlikely to be able to tell what parts of who they are is the AD/HD and what isn't.
That isn't to suggest that people with this disorder have nothing to offer, or that impulsivity is always a bad thing. And it should be noted that these disorders are dimensional, meaning that we all have these symptoms to some extent. The trouble with someone with AD/HD is that these symptoms exist to the point where they interfere with their lives. Getting the symptoms under control to the point of having a happy and successful life is the goal of all therapies.