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attention deficit disorder

Alternative Names
ADD

Definition

Attention deficit disorder (ADD), is the old name for a disorder in which a person shows a certain pattern of behavior over time. This pattern includes inattention and impulsivity. Attention deficit / hyperactivity disorder, (AD/HD) as it is now called, is characterized by physical hyperactivity, impulsivity, and/or distractibility, in addition to the other behaviors.

What is going on in the body?

In people who have AD/HD, the parts of the brain areas that control attention use less glucose than in other individuals. This indicates that the areas are less active. The lower activity level seems to cause inattention. Researchers are also finding problems in other areas of the brain in people with AD/HD. No one knows for sure why these brain areas are less active.

What are the signs and symptoms of the condition?

People who have AD/HD show signs of inattention, including the following: Someone who has AD/HD may also show signs of impulsivity and hyperactivity, such as:

What are the causes and risks of the condition?

No one knows the exact cause of AD/HD. Most experts believe that the following factors may play a role in causing AD/HD:

AD/HD is thought to affect 5% to 10% of school-age children. Boys are 10 times more likely than girls to be affected by AD/HD.

What can be done to prevent the condition?

Many times, AD/HD cannot be prevented. However, these measures may be helpful:

How is the condition diagnosed?

Diagnosis of AD/HD begins with a medical history and physical exam. The healthcare provider will look for behaviors that are typical of AD/HD.

In order to diagnose AD/HD, the provider must determine that the behaviors have the following characteristics: The healthcare provider may order some of the following tests to rule out other disorders:

What are the long-term effects of the condition?

Without effective treatment, AD/HD can cause serious problems at school, home, work, and in social settings.

What are the risks to others?

AD/HD is not contagious and poses no risk to others. There may be a genetic component to the disorder.

What are the treatments for the condition?

Treatment for AD/HD usually involves medicine along with one or more other strategies. The most common medicine for AD/HD is a stimulant called methylphenidate. This medicine is available in a number of name-brand products, such as Ritalin, Concerta, or Metadate.

Other medicines used to treat AD/HD include the following: Medicines are often used together with other treatment strategies, such as:

What are the side effects of the treatments?

Side effects from medicine can include the following:

A person who is receiving any form of therapy may show an initial increase in negative behavior. This may last until new behaviors become routine.

What happens after treatment for the condition?

Treatment and monitoring of AD/HD can be lifelong for many patients, although for some, the symptoms seem to reduce or go away over time.

How is the condition monitored?

Any new or worsening symptoms should be reported to the healthcare provider.


Author:Michael Johnson, MD
Date Written:05/01/00
Medical Review:Harold Koenig, MD
Date Written:9/13/2006
Reviewer:Reginald Finger, MD
Date Reviewed:9/13/2006
Contributors
Potential conflict of interest information for reviewers available on request