Pervasive Development Disorder

Until 2013, the term pervasive development disorder – not otherwise specified (PDD-NOS) was used to describe one of the forms of autism. The phrase “not otherwise specified” was a reference to the diagnosis being atypical of autism as it was identified.

PDD is now a recognized subtype of autism spectrum disorder (ASD). However, it is also used to diagnose those who meet some but not all criteria of ASD. In general, children with PDD are likely to have relatively milder ASD symptoms. This is why PDD is sometimes also referred to as atypical autism.

Signs and Symptoms of PDD

Similar to other types of autism, children with PDD will likely have delays in developing socialization and communication skills. Parents may notice associated behaviors as early as infancy.

By 6 to 9 months

Few or no big smiles or other engaging expressions and reactions
Limited or no eye contact
Minimal sharing of sounds or other facial expressions

By 12-16 months

Little or no babbling or attempt at communication
Difficulty relating to people
- The child doesn’t use gestures such as pointing, showing, reaching, or waving to communicate.
- The child shows little to no response when called by name.
- The child has very few or no spoken words in their vocabulary.

By 24 months

Very few or no meaningful, two-word phrases (not including imitating or repeating)

Symptoms Across All Age Groups

Other symptoms identifiable at any age can include:

Loss of previously acquired speech, babbling, or social skills
Preference for staying by themselves (solitude)
Difficulty relating to how other people feel
Delayed language development
Persistent repetition of words or phrases (echolalia)
Difficulty handling changes in routine or surroundings
Limited and focused interests
Repetitive behaviors (flapping, rocking, spinning, etc.)
Unexpected reactions to sensory inputs (lights, colors, sounds, smells, tastes, textures, etc.)

It is also possible that a child may not exhibit many symptoms. For instance, the child may have marked symptoms in their social interactions and communication but display none of the other symptoms or behaviors.

Diagnosis and Treatment for PDD

Behavioral therapy is the most popular and effective intervention for children with PDD. Early diagnosis and supportive treatment offer a child the best chance for success in the classroom and the possibility to live an independent adult life.

Parents who suspect their child has symptoms of PDD should consult a physician for a confirmed diagnosis. Therapy for children is best when individualized to their needs and symptoms. It is designed to limit and eliminate maladaptive behaviors while teaching and encouraging desirable behavior.

At Sunshine Advantage, treatment plans for children with PDD are devised after a thorough assessment of their strengths, developmental history, and range of symptoms.

Managing Pervasive Development Disorder with Sunshine Advantage

At Sunshine Advantage, we can provide support for families with a child who has been diagnosed with PDD-NOS. Our therapists and board-certified behavioral analysts design highly personalized therapy and treatment plans for every child based on their symptoms and goals for success.

To explore how we can help your child and family, call Sunshine Advantage at 855-523-2327 or contact us online.