The severity of symptoms varies greatly, but all people with autismhave some core symptoms in the areas of:
- Social interactions andrelationships. Symptoms may include:
- Significant problems developing nonverbal communication skills, such as eye-to-eyegazing, facial expressions, and body posture.
- Failure to establish friendships with children the same age.
- Lack of interest in sharing enjoyment, interests, or achievements with other people.
- Lack of empathy. People with autism may have difficulty understanding another person’s feelings, such as pain or sorrow.
- Verbal and nonverbal communication. Symptoms may include:
- Delay in, or lack of, learning to talk. As many as 40% of people with autism never speak.1
- Problems taking steps to start a conversation. Also, people with autism have difficulties continuing a conversation after it has begun.
- Stereotyped and repetitive use of language. People with autism often repeat over and over a phrase they have heard previously (echolalia).
- Difficulty understanding their listener’s perspective. For example, a person with autism may not understand that someone is using humor. They may interpret the communication word for word and fail to catch the implied meaning.