Autism Spectrum Disorders Health Center
Asperger's Syndrome
Asperger's syndrome, also called Asperger's disorder, is a type of pervasive development disorder (PDD). PDDs are a group of conditions that involve delays in the development of many basic skills, most notably the ability to socialize with others, to communicate, and to use imagination.
Although Asperger's syndrome is similar in some ways to autism -- another, more severe type of PDD -- there are some important differences. Children with Asperger's syndrome typically function better than do those with autism. In addition, children with Asperger's syndrome generally have normal intelligence and near-normal language development, although they may develop problems communicating as they get older.
Each child with an autism spectrum disorder will have his or her own individual pattern of autism. Sometimes, a child's development is delayed from birth. Other children with autism develop normally before suddenly losing social or language skills. In some children, a loss of language is the impairment. In others, unusual behaviors (like spending hours lining up toys) predominate.
Parents are usually the first to notice something is wrong.
Continue reading about types of autism spectrum disorders, such as Asperger's, Rett's, and more.
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Asperger's syndrome was named for the Austrian doctor, Hans Asperger, who first described the disorder in 1944. However, Asperger's syndrome was not recognized as a unique disorder until much later.
What Are the Symptoms of Asperger's Syndrome?
The symptoms of Asperger's syndrome vary and can range from mild to severe. Common symptoms include:
- Problems with social skills: Children with Asperger's syndrome generally have difficulty interacting with others and often are awkward in social situations. They generally do not make friends easily.
- Eccentric or repetitive behaviors: Children with this condition may develop odd, repetitive movements, such as hand wringing or finger twisting.
- Unusual preoccupations or rituals: A child with Asperger's syndrome may develop rituals that he or she refuses to alter, such as getting dressed in a specific order.
- Communication difficulties: People with Asperger's syndrome may not make eye contact when speaking with someone. They may have trouble using facial expressions and gestures, and understanding body language. They also tend to have problems understanding language in context.
- Limited range of interests: A child with Asperger's syndrome may develop an intense, almost obsessive, interest in a few areas, such as sports schedules, weather, or maps.
- Coordination problems: The movements of children with Asperger's syndrome may seem clumsy or awkward.
- Skilled or talented: Many children with Asperger's syndrome are exceptionally talented or skilled in a particular area, such as music or math.
What Causes Asperger's Syndrome?
The exact cause of Asperger's syndrome is not known. However, the fact that it tends to run in families suggests that a tendency to develop the disorder may be inherited (passed on from parent to child).
How Common Is Asperger's Syndrome?
Asperger's syndrome has only recently been recognized as a unique disorder. For that reason, the exact number of people with the disorder is unknown, although it is more common than autism. Estimates suggest Asperger's syndrome affects from 0.024% to 0.36% of children. It is more common in males than in females, and usually is first diagnosed in children between the ages of 2 and 6 years.
How Is Asperger's Syndrome Diagnosed?
If symptoms are present, the doctor will begin an evaluation by performing a complete medical history and physical exam. Although there are no tests for Asperger's syndrome, the doctor may use various tests -- such as X-rays and blood tests -- to determine if there is a physical disorder causing the symptoms.
If no physical disorder is found, the child may be referred to a specialist in childhood development disorders, such as a child and adolescent psychiatrist or psychologist, pediatric neurologist, developmental pediatrician, or another health professional who is specially trained to diagnose and treat Asperger's syndrome. The doctor bases his or her diagnosis on the child's level of development, and the doctor's observation of the child's speech and behavior, including his or her play and ability to socialize with others. The doctor often seeks input from the child's parents, teachers, and other adults who are familiar with the child's symptoms.
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