Overview of Autism Spectrum Disorders (ASD)
This issue of NASET's Autism Spectrum Disorder Series series will cover the following topic:
Overview of Autism Spectrum Disorder
Autism spectrum disorder (ASD) is a developmental disability caused by differences in the brain. Some people with ASD have a known difference, such as a genetic condition. Other causes are not yet known. Scientists believe there are multiple causes of ASD that act together to change the most common ways people develop. We still have much to learn about these causes and how they impact people with ASD.
People with ASD may behave, communicate, interact, and learn in ways that are different from most other people. There is often nothing about how they look that sets them apart from other people. The abilities of people with ASD can vary significantly. For example, some people with ASD may have advanced conversation skills whereas others may be nonverbal. Some people with ASD need a lot of help in their daily lives; others can work and live with little to no support.
ASD begins before the age of 3 years and can last throughout a person’s life, although symptoms may improve over time. Some children show ASD symptoms within the first 12 months of life. In others, symptoms may not show up until 24 months of age or later. Some children with ASD gain new skills and meet developmental milestones until around 18 to 24 months of age, and then they stop gaining new skills or lose the skills they once had.
The NASET Autism Spectrum Disorder Series is an overview of areas involved with ASD that will provide you with foundational as well as practical suggestions for dealing with issues involving children with ASD.
IMPORTANT POINT: Most practitioners and educators believe autism is a “spectrum” disorder, a group of disorders with similar features, which can range from mild to severe. Throughout this series we will refer to “autism” as “Autism Spectrum Disorder” (ASD).
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