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Autism Symptoms

(Also Known As: Atism Symptoms, Autistic Symptoms, Pervasive Developmental Disorder Symptoms, Autistic Spectrum Disorder Symptoms)

(Reviewed by: Paul Peterson, Licensed Therapist)

What are the Symptoms of Autism?

The symptoms of autism can vary from person to person, and their levels of functioning can vary as well—from low functioning to high functioning. The following are just some of the common symptoms of autism:

  • In infants:
    • Not smiling or cooing in response to caregiver, or will not initiate play with caregivers, not wanting to cuddle with their caregivers, hardly making eye-to-eye contact.
  • In children:
    • Lack of interest in playing with other children
    • Preference for solitary play
    • Tendency not to react to other people’s emotions
    • Difficulty making eye-contact, or avoiding eye-contact
    • Delays in language acquisition
    • Difficulty with communication
    • Tendency to repeat or echo what is heard, rather than generating one’s own words and sentences
    • Lack of voice modulation (either the voice is always too loud, or not appropriate with what is being said)
    • Preoccupation with objects or parts of objects
    • Feeling extreme anxiety or rage when routines and rituals are interrupted or changed
    • Bizarre, repetitive behaviors with one’s body or with toys
    • Once language is acquired, there are significant deviancies in the use of language
    • Aloofness
    • Difficulty carrying out a normal conversation
    • Hypersensitivity to certain sounds, lights, smells, touch, textures, etc.

Could You Have Autism?

Autism Topics

Related Conditions

Asperger's Syndrome – autism, deficient interaction and social skills, lacking of empathy, autistic, restricted pattern of behaviors
Childhood Disintegrative Disorder – delay in language and motor skills, autism, lack of social functions
Rett's Disorder – repetitive movements, cognitive impairment, autism, problem with social skills