The-definition.com

Definition

Pervasive Developmental Disorder (PDD)

Pervasive Developmental Disorder (PDD) is a class of neurological disorders usually evident by age 3. They are characterized by severe and pervasive impairment in social interaction skills, communication skills and possibly by stereotyped behavior, interests and activities. Pervasive Developmental Disorders include autism, Asperger’s syndrome and nonverbal learning disorder.

References
Share it:  Cite

More from this Section

  • Family Resource Centers
    Family Resource Centers is the facilities housed on four Fort Worth Independent School ...
  • Avascular necrosis
    Avascular necrosis is cellular death of bone resulting from a temporary or permanent loss ...
  • Eating Disorder
    Eating Disorder is a serious disturbance in eating behavior, such as extreme and unhealthy ...
  • Vertebral canal
    The spinal cord lies within a bony canal formed by adjacent vertebrae and soft tissue ...
  • Visceral pleura
    Visceral pleura is continuous with parietal pleura at the hilum of each lung where structures ...