What are characteristics of autism spectrum disorder?

Autism spectrum disorder (ASD) is a complex developmental condition that involves persistent challenges in social interaction, speech and nonverbal communication, and restricted/repetitive behaviors. The effects of ASD and the severity of symptoms are different in each person.

What are the two major characteristics of ASD?

However, there are primary characteristics that are associated with ASD. The primary characteristics are 1) poorly developed social skills, 2) difficulty with expressive and receptive communication, and 3) the presence of restrictive and repetitive behaviors.

What age does autism usually show up?

Some children show ASD symptoms within the first 12 months of life. In others, symptoms may not show up until 24 months 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 they lose the skills they once had.

What is the mildest form of autism?

High functioning autism describes “mild” autism, or “level 1” on the spectrum. Asperger’s syndrome is often described as high functioning autism. Symptoms are present, but the need for support is minimal.