Getting Started:

What is Pervasive Developmental Disorder?

The diagnostic category pervasive developmental disorders (PDD) refers to a group of disorders characterized by delays in the development of multiple basic functions including socialization and communication. Parents may note symptoms as early as infancy and typically onset is prior to 3 years of age. Symptoms may include communication problems such as using and understanding language; difficulty relating to people, objects, and events; unusual play with toys and other objects; difficulty with changes in routine or familiar surroundings, and repetitive body movements or behavior patterns. Autism (a developmental brain disorder characterized by impaired social interaction and communication skills, and limited range of activities and interests) is the most characteristic and best studied PDD. Other types of PDD include Asperger's syndrome, childhood disintegrative disorder, Rett's syndrome, and PDD not otherwise specified. Children with PDD vary widely in abilities, intelligence, and behaviors. Some children do not speak at all, others speak in limited phrases or conversations, and some have relatively normal language development. Repetitive play skills and limited social skills are generally evident as well. Unusual responses to sensory information - loud noises, lights - are also common.

Information from: www.med.umich.edu

What is the difference between autism and PDD or PDD-NOS?

Pervasive Developmental Disorder (PDD) is a category designated by the American Psychiatric Association to indicate children with delay or deviance in their social /language/motor and/or cognitive development. A child may have delays in social development and delays in one or more of the other categories. The profiles of children with a PDD can vary tremendously. PDD is not one disorder but a category that encompasses a wide range of delays of different magnitude in different domains. Autism is the most severe of the pervasive developmental disorders. Autism indicates a primary disturbance in the individual's ability to relate to others. Language delay and cognitive delays are also common.

PDD-NOS represents Pervasive Developmental Disorder-Not Otherwise Specified. This is a diagnosis given to a child who exhibits impairment in the development of reciprocal social interaction, verbal and non-verbal communication, or when stereotyped behavior or activities are present. However, the child does not meet the criteria for any specific pervasive developmental disorder.

Information from: www.info.med.yale.edu

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Published on: 2003-05-26 (1804 reads)