Types of Autism and Associated

Symptoms

There have been several types of autism noted along the spectrum. Each differs by severity. Some types are classic autism, autistic disorder or Kanner's syndrome, Rett's Syndrome, and Asperger's Disorder.Kanner's syndrome was named for psychiatrist Leo Kanner who is credited with discovering this syndrome based off of research done on 11 child patients between 1932 and 1943. This is the most severe form of autism.

All the children studied demonstrated the same characteristics. There was a lack of emotional contact with others, a desire for sameness and routine, abnormality in speech or muteness, fascination with manipulating objects, and learning difficulties despite an intelligent appearance. Certain sounds or colors can upset people with classic autism.

How to Recognize the Different Autism Types

Hans Asperger of Vienna discovered Asperger's disorder in 1944, around the same time as Kanner. However, many until the 1980s when his work was translated to English did not know his studies. Asperger's studies concluded some similar findings as Kanner, with one major distinguishing feature, the subjects of Asperger's studies were vocal. People with Asperger's are not found to have language delays. Nor do they have delays in cognition.

Childhood Disintegrative Disorder is a type of autism that has developed in children later on between the ages of 2 and 4. Children who suffer with this condition once appeared normal. However, somewhere down the road they stopped talking, lost potty-training skills and stopped socializing with others. Oftentimes they fail to make friends and lose motor skills.

Learn About the Different Types of Autism and

Their Characteristics

Dr. Andreas Rett identified Rett's syndrome in 1965. Rett's syndrome is established as being a neurological degenerative disorder that affects only girls. Rett's syndrome is marked with poor head growth. Many times girls with this disorder repeat hand motions like hand washing and clapping. The discovery of the gene responsible for the onset of Rett's syndrome was found late in 1999.

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Types of Autism - The Different Types of Autism

There are five distinct types of Pervasive Developmental Disorders (PDD) that are considered to be related to Autism because of the neuro development portions that have been identified under the Autism Spectrum.

They are Autism Disorder, Asperger's Syndrome, Rett's Disorder, Childhood Disintegrative Disorder, and Pervasive Developmental Disorder Not Otherwise Specified (PDDNOS).

Each of the five disorders are classified as pervasive in nature rather than Specific Development Disorders (SDD) because they are characterized by multiple disabilities in a variety of areas rather than focused on one particular issue.

Let's take a brief look at each of the five types of Autism on an individual level. While many of the characteristics may be similar, the differences are distinct enough for them to fall under different categories.

Classic Autism, commonly called Autism, is also sometimes called Kanner's Syndrome after the Psychiatrist Leo Kanner. He studied 11 children at John Hopkins University from 1932 to 1943.

He wrote about the common elements found in these children including a lack of emotion, repetitive actions, and problems with their speech formation, their ability to manipulate various objects, learning difficulties, and their levels of intelligence. His studies lead to many others wanting to learn more about the disorder.

Asperger's Syndrome is named after its founder, Hans Asperger. His studies took place in Vienna in 1944. He discovered many individuals had the problems with social skills and repetitive patterns but they did not have trouble with learning or their cognitive abilities.

They also portrayed some very exceptional talents or abilities that were considered to be very remarkable. Albert Einstein is a very famous individual who had Asperger's Syndrome.

Dr. Andrease Rett documented what is known As Rett's Syndrome while in Australia in 1965. This is classified as a neuro developmental degenerative disorder. It only affects girls and the degeneration results in them being completely dependent on others for all of their needs.

They have some of the symptoms of Autism but they also suffer from muscle lose. Girls with Rett's Syndrome often have very small hands and feet.

Childhood Disintegrative Disorder (CDD) is also called Heller's Syndrome after the teacher Theodore Heller. He first described the disorder in 1908. The characteristics include the child having a normal pattern of development but then has a regression of skill as they get older.

Any type of neuro disability that doesn't fall into the above categories is classified as PDDNOS. While individuals in this particular category experience very mild symptoms they suffer greatly in the area of social interactions. The proper diagnosis is necessary so that the proper therapies and techniques can be properly introduced.

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