Attention Deficit Disorder is a condition causing a persistent pattern of difficulties resulting in one or more of the the following behaviors: inattention, hyperactivity and impulsivity.
Inattention: Difficulty attending or focusing on a specific task. People with Attention Deficit Disorder may become distracted within a matter of minutes. Inattentive behavior may also cause difficulties with staying organized (e.g. losing things), keeping track of time, completing tasks, and making careless errors.
Hyperactivity: Difficulty inhibiting behavior. These people are in constant motion. They may engage in excessive fiddling, leg swinging, and squirming in their chair.
Impulsivity: Difficulty controlling impulses. These people do not stop and think before they act. They say and do whatever comes into their mind without thinking about the consequences. They might say something inappropriate and regret it later, blurt out a response to question before a person is done speaking to them, or have difficulty waiting for their turn in line.
ADD or ADHD - What's the Difference?
Clinically, the term ADHD stands for Attention Deficit Hyperactivity Disorder. A person may either be diagnosed with ADHD or ADD depending on whether they are hyperactive or not. It is possible for someone to have ADD without being hyperactive.