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Explain any one pervasive developmental disorder?

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Explain any one pervasive developmental disorder?
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Meghna Thapar 4 years, 3 months ago

The diagnostic category of pervasive developmental disorders (PDD) refers to a group of disorders characterized by delays in the development of socialization and communication skills. Parents may note symptoms as early as infancy, although the typical age of onset is before 3 years of age. The DSM-5 redefined autism. Its predecessor, the DSM-IV-TR, included five Pervasive Developmental Disorders (PDDs): Autistic Disorder, Asperger's Disorder, Rett's Disorder, Childhood Disintegrative Disorder and Pervasive Developmental Disorder Not Otherwise Specified (PDD-NOS).

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