Health Information
Pervasive Developmental Disorders
Topic Overview
Pervasive developmental disorders (PDDs) is an umbrella term used to define a class of disorders.
Disorders included in this class are:
- Reference Autistic disorder Opens New Window.
- Reference Rett's disorder Opens New Window.
- Reference Asperger's syndrome Opens New Window.
- Reference Childhood disintegrative disorder (CDD) Opens New Window.
- Pervasive developmental disorders—not otherwise specified (PDD-NOS). This term is used to identify children who do not meet the diagnostic criteria for an established pervasive developmental disorder (PDD) but who have developmental and behavioral problems that are similar to those found in autism. These problems include abnormal sensitivities and unusual behavioral responses to certain situations.
Children with pervasive developmental disorders (PDDs) have difficulty in areas of social and emotional development, including:
- Developing relationships with other people, including their parents and children their own age.
- Communicating with other people.
- Having unusual behaviors and interests.
The severity of PDD varies by individual. Severely affected children are unable to function without significant help from parents and other caregivers. Other children are mildly affected and can develop adequate skills to lead independent lives as adults. Many children are affected at levels somewhere between these two extremes.
Pervasive developmental disorders are present at birth. But the signs of these disorders may not be noticed until later, usually during the first 3 years of a child's life.
| By: | Reference Healthwise Staff | Last Revised: Reference April 3, 2012 |
| Medical Review: | Reference John Pope, MD - Pediatrics
Reference Fred Volkmar, MD - Child and Adolescent Psychiatry |
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