Indepth information on hyperactivity, a major symptom of attention deficit hyperactivity disorder.
Typically, people with the predominantly hyperactive-impulsive subtype of attention deficit hyperactivity disorder (ADHD) are considered to have attention deficit disorder (ADD). However, for clarification (and because this is the Suite 101 ADD/ADHD site) I use the term ADD/ADHD instead. Also, in the DSM-IV, hyperactivity and impulsivity are not considered separate features, but as stemming from an overall difficulty in controlling behavior. However, for the purposes of understanding, I have separated the two symptoms.
For more information, check out these pages: Spotlight on Inattention, Spotlight on Impulsiveness, and The Big Three of ADD/ADHD.
Note: Recognized symptoms refer to those listed in the American Psychiatric Association's Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision.