This is because they usually occur during the developmental phase of a child- around the age of 3 years or so. Both approaches contribute to confusion about the term, because the term PDD actually refers to a category of disorders and is not a diagnostic label. Pervasive developmental disorders or PDDs are also known as developmental disorders. Others use the general category label of PDD because they are hesitant to diagnose very young children with a specific type of PDD, such as autism. Many use the term PDD as a short way of saying PDD-NOS. There is a division among doctors on the use of the term PDD. PDD itself does not affect life expectancy. Parents may note symptoms of PDD as early as infancy and typically onset is prior to three years of age.
The first three of these disorders are commonly called the autism spectrum disorders the last two disorders are much rarer, and are sometimes placed in the autism spectrum and sometimes not. Synonyms for pervasive include ubiquitous, pervading, prevalent, widespread, penetrating, immanent, common, extensive, general and omnipresent. āPervasive developmental disorder not otherwise specified, which includes atypical autism, and is the most common The pervasive developmental disorders are: The diagnostic category pervasive developmental disorders, as opposed to specific developmental disorders, refers to a group of five disorders characterized by delays in the development of multiple basic functions including socialization and communication. PDD Any of several disorders, including autism, that begin in childhood and are characterized by difficulties with social interaction and. Freebase (0.00 / 0 votes) Rate this definition: pervasive developmental disorder synonyms, pervasive developmental disorder pronunciation, pervasive developmental disorder translation, English dictionary definition of pervasive developmental disorder.