Developmental disorder or developmental disability means a severe, chronic disability of an individual who has a mental or physical impairment by the age of 22 which is likely to continue indefinitely and results in substantial functional limitations in three or more areas of major life activity.

What are the 4 main types of developmental disorders?

There are four main types of developmental disorders: nervous system disabilities, sensory related disabilities, metabolic disabilities and degenerative disorders. Many different subsets of disabilities nest under these four main groups.

Which disorder is also known as developmental disorder?

Developmental disorders are better called neurodevelopmental disorders. Neurodevelopmental disorders are neurologically based conditions that can interfere with the acquisition, retention, or application of specific skills or sets of information.