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February 6, 2012
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Asperger Syndrome
(Asperger's Syndrome)

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Medical Editor:

Asperger's Syndrome Signs and Symptoms

Medical Author: Melissa Conrad Stöppler, MD
Medical Editor: Roxanne Dryden-Edwards, MD

It's important to understand that while certain types of symptoms are common in Asperger's syndrome; these symptoms will vary in intensity and severity among affected individuals. Moreover, some individuals may have only some of the associated symptoms, and the overall level of functioning of a given person can vary widely.

Note: The term Asperger's disorder is the preferred diagnostic term according to the DSM-IV-TR.

People with Asperger's syndrome typically have trouble with the kind of social skills involved in making and sustaining friendships. Their lack of understanding of social cues may cause them to behave in inappropriate ways, such as violating personal space, interrupting conversations, or having trouble understanding when they have hurt others' feelings. While individuals with Asperger's syndrome may report that they want to have friends, they may not understand the true meaning of friendship for others. For example, they may believe they have many friends or believe that anyone they know is their friend. Persons with Asperger's syndrome may also be confused about the emotional aspects of friendship, such as sharing and helping. It may be difficult for them to break away from their own interests and obsessions in order to listen to others' needs and opinions.

Asperger Syndrome Overview

Asperger syndrome, also known as Asperger's disorder, Asperger's syndrome, or AS, is a pervasive developmental disorder (a spectrum of behavioral disorders including autism). Asperger disorder is characterized as one of the autism spectrum disorders (which also include autistic disorder, Rett disorder, childhood disintegrative disorder, and pervasive developmental disorder-not otherwise specified [PDD-NOS]) Unlike persons with autistic disorder, those with Asperger syndrome do not show a marked delay in language development or cognitive development. Asperger syndrome is commonly recognized in children after the age of 3 years and is more frequently diagnosed in boys.

Individuals with Asperger syndrome have serious impairments in their social and communication skills, including poor nonverbal communication. However, many individuals have good cognitive and verbal skills, and typically have normal to superior intelligence. Many have excellent rote memory and become intensely interested in one or two subjects.

Children with Asperger syndrome are typically educated in the mainstream setting but sometimes require education accommodations or special education services. These children often have difficulty making friends and are often ostracized, teased, or bullied by their peers.

Asperger syndrome is named for Dr. Hans Asperger, an Austrian pediatrician, who first described the condition in 1944. The condition was first recognized as a diagnostic entity by The American Psychiatric Association in the Diagnostic and Statistical Manual of Mental Disorders-IV (DSM-IV) in 1994.

Asperger Syndrome Causes

The cause of Asperger syndrome is unknown. A genetic component to this syndrome is likely, given that the condition has been observed to run in families. It is also likely that environmental influences play a role. Although there remain concerns among some families that vaccines and/or the preservatives for vaccines may play a role in the development of Asperger Syndrome and other autism-spectrum disorders, conventional knowledge continues to generally dispute that theory.

Asperger syndrome is much more common in boys than in girls. In fact, it is 5 times more common in boys. The numbers of children diagnosed with autism spectrum disorders are increasing in the US. Recent studies show that an average of 1 out of every 110 children has an autism spectrum disorder. It is not entirely clear whether the increase in the number of children is due to improvements and modifications in the diagnostic process and/or some degree of true increase in the incidence of the disorders themselves, but both factors likely are involved.

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Asperger Syndrome

Topic Overview

What is Asperger’s syndrome?

Asperger's syndrome is a developmental disorder that makes it very hard to interact with other people. Your child may find it hard to make friends because he or she is socially awkward.

People with Asperger's syndrome have some traits of autism. For example, they may have poor social skills, prefer routine, and not like change. But unlike those who have autism, children with Asperger's syndrome usually start to talk before 2 years of age, when speech normally starts to develop.

Asperger's syndrome is a lifelong condition, but symptoms tend to improve over time. Adults with this condition can learn to understand their own strengths and weaknesses. And they can improve their social skills.

Both Asperger's syndrome and autism belong to the group of disorders called pervasive developmental disorders.

What causes Asperger's syndrome?

The exact cause of Asperger's syndrome is not know...

Read the Asperger's Syndrome article »


Read What Your Physician is Reading on Medscape

Pervasive Developmental Disorder: Asperger Syndrome »

Asperger disorder is a form of pervasive developmental disorder characterized by persistent impairment in social interactions, repetitive behavior patterns, and restricted interests.

Read More on Medscape Reference »

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