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What are the symptoms of pervasive developmental disorders (PDDs) or autism spectrum disorders (ASDs)?

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Children on the autism spectrum have problems with social communication and interactions, and they often repeat certain behaviors. They may also:

  • Avoid eye contact
  • Not be able to express what they’re thinking through language
  • Have a high-pitched or flat voice
  • Find it hard to keep up a conversation
  • Have trouble controlling emotions
  • Perform repetitive behaviors like hand-flapping, rocking, jumping, or twirling

SOURCES:

Emory Autism Center: “Characteristics of autism and the pervasive developmental disorders (PDD).”

American Academy of Pediatrics News: “New DSM-5 includes changes to autism criteria.”

American Psychiatric Association: “Autism spectrum disorder.”

Autism Society: “Pervasive developmental disorders (PDD).”

Autism Speaks: “PDD-NOS” and “Autism & Your Family.”

National Institute of Neurological Disorders and Stroke: “Autism spectrum disorder fact sheet.”

Reviewed by Roy Benaroch on November 18, 2016

SOURCES:

Emory Autism Center: “Characteristics of autism and the pervasive developmental disorders (PDD).”

American Academy of Pediatrics News: “New DSM-5 includes changes to autism criteria.”

American Psychiatric Association: “Autism spectrum disorder.”

Autism Society: “Pervasive developmental disorders (PDD).”

Autism Speaks: “PDD-NOS” and “Autism & Your Family.”

National Institute of Neurological Disorders and Stroke: “Autism spectrum disorder fact sheet.”

Reviewed by Roy Benaroch on November 18, 2016

NEXT QUESTION:

How are pervasive developmental disorders (PDDs) or autism spectrum disorders (ASDs) diagnosed?

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