Autism spectrum disorder is a condition related to brain development that impacts how a person perceives and socializes with others,causing problems in social interaction and communication.
The disorder also includes limited and repetitive patterns of behavior.• 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.
There are five types of PDDs. These include the three known autism spectrum disorders—autism, Asperger syndrome, and pervasive developmental disorder not otherwise specified (PDD-NOS)—as well as childhood disintegrative disorder (CDD) and Rett syndrome.
PDD Disorders
Autism spectrum disorder is a condition related to brain development that impacts how a person perceives and socializes with others,causing problems in social interaction and communication.
The disorder also includes limited and repetitive patterns of behavior.• 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.
There are five types of PDDs. These include the three known autism spectrum disorders—autism, Asperger syndrome, and pervasive developmental disorder not otherwise specified (PDD-NOS)—as well as childhood disintegrative disorder (CDD) and Rett syndrome.