Like Timmy, parents of children with PDD may notice delays around 3 years old. He lacked the same social skills as other toddlers in his preschool class, and it was in kindergarten that teachers ...

The term “pervasive developmental disorders (PDDs)” was used by the medical community to describe developmental delays in children, including problems with socializing and communicating ...

Pervasive developmental disorder, not otherwise specified (PDD-NOS). This mouthful of a diagnosis included most children whose autism was more severe than Asperger's syndrome, but not as severe as ...

Pervasive developmental disorders (PDD) are a group of conditions that affect average development. ... PDD-NOS usually first appears in young children, often before the age of 3.

Except for Rett disorder, which occurs almost exclusively in girls, most pervasive developmental disorders (PDDs) are less common in girls than in boys. Girls with PDD tend to have slightly lower ...

These may be signs that your child has an autism spectrum disorder. - Does your child avoid eye contact, have little or no interest in making new friends or prefer solitary activities to social games?

Children with PDD display a variety of severe behavioral disturbances. [2] They may not speak in words or may only speak noncommunicatively (eg, echoing statements that they hear rather than ...