Pervasive Developmental Disorder (PDD) refers to a group of disorders characterized by delays in the development of socialization and communication skills. It is now known as Autism Spectrum Disorder (ASD), and the terminology PDD and ASD are often used interchangeably. Some key points about PDD include:
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Symptoms: Symptoms of PDD may include difficulty using and understanding language, difficulty relating to people, objects, and events, unusual play with toys and objects, difficulty with changes in routine or surroundings, and repetitive body movements or behavior patterns.
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Diagnosis: PDD-NOS (Pervasive Developmental Disorder-Not Otherwise Specified) is a subtype of autism, and it is diagnosed when a person has some core characteristics of autism but not others. It may be referred to as "subthreshold autism" and is used for individuals who have some but not all characteristics of autism or who have relatively mild symptoms.
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Treatment: There is no known cure for PDD, but medications may be used to address specific behavioral problems, and therapy should be specialized according to the needs of each child. Early intervention plays a critical role in improving the outcome of individuals with PDD.
In summary, Pervasive Developmental Disorder (PDD) is a group of disorders characterized by delays in the development of socialization and communication skills, now known as Autism Spectrum Disorder (ASD). The onset of PDD occurs during infancy, and early intervention is crucial for improving outcomes.
