What's the Difference Between ADHD (Attention Deficit/Hyperactivity Disorder) and ADD (Attention Deficit Disorder)?

When you look at the last couple of years many different terms for infants, adolescents and adults with ADHD have been introduced. They were mainly influenced by American descriptions of the classification system DSM-IV:

ADHD (Attention-Deficit/Hyperactivity Disorder) is the term utilized in the current Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) diagnostic criteria.

ADD (Attention Deficit Disorder) with or even without hyperactivity is the older term from the DSM-IIIR. So in a select number older literature you will find this term as a synonym for ADHD.

The difference between ADD and ADHD, in short, is basically nothing. However, I