While scientists don't know the exact causes of ASD, research suggests that genes can act together with influences from the environment to affect development in ways that lead to ASD. Excelling in math, science, music, or art.Being strong visual and auditory learners.Being able to learn things in detail and remember information for long periods of time.Although people with ASD experience many challenges, they may also have many strengths, including: People with ASD may also experience sleep problems and irritability. Being more or less sensitive than other people to sensory input, such as light, noise, clothing, or temperature.Getting upset by slight changes in a routine.Having overly focused interests, such as with moving objects or parts of objects.Having a lasting intense interest in certain topics, such as numbers, details, or facts.For example, repeating words or phrases, a behavior called echolalia Repeating certain behaviors or having unusual behaviors.Restrictive / repetitive behaviors may include: Having trouble understanding another person's point of view or being unable to predict or understand other people's actions.Having an unusual tone of voice that may sound sing-song or flat and robot-like.Having facial expressions, movements, and gestures that do not match what is being said.Often talking at length about a favorite subject without noticing that others are not interested or without giving others a chance to respond.

Having difficulties with the back and forth of conversation.Failing to, or being slow to, respond to someone calling their name or to other verbal attempts to gain attention.Rarely sharing the enjoyment of objects or activities by pointing or showing things to others.Tending not to look at or listen to people.Making little or inconsistent eye contact.Social communication / interaction behaviors may include: Not all people with ASD will show all behaviors, but most will show several. The list below gives some examples of the types of behaviors that are seen in people diagnosed with ASD. People with ASD have difficulty with social communication and interaction, restricted interests, and repetitive behaviors.

Dsm 5 autism spectrum disorder