Developmental disorders are a group of conditions which originates in the childhood & leads to serious impairment in various areas. It affects the normal development of a person from childhood.
Autism is a complex neurobehavioral disorder that includes impairments in social interaction and developmental language and communication skills combined with rigid, repetitive behaviors. The disorder covers a large spectrum of symptoms, skills, and levels of impairment. It ranges in severity from a handicap that somewhat limits an otherwise normal life to a devastating disability that may require institutional care.