Autism Spectrum Disorders (ASD), also known as Pervasive Developmental Disorders (PDDs), cause severe and pervasive impairment in thinking, feeling, language, and the ability to relate to others.
These disorders are usually first diagnosed in early childhood and range from a severe form, called Autistic Disorder, through Pervasive Development Disorder - Not Otherwise Specified (PDD-NOS).
Learn more about the Autism Spectrum Disorders by following the links below:
ASDs are “spectrum disorders.” That means ASDs affect each person in different ways, and can range from very mild to severe. People with ASDs share some similar symptoms, such as problems with social interaction. But there are differences in when the symptoms start, how severe they are, and the exact nature of the symptoms.
Learn More About Autism.