Developmental Disorders

Developmental Disorders now known as neurodevelopmental disorders include persistent difficulties in the social use of verbal and nonverbal communication as manifested by deficits in using communication for social purposes, impairment of the ability to change communication to match context, difficulties for following rules for conversation, difficulties understanding what is not explicitly stated. The deficits result in functional limitations in effective communication, social participation, social relationships, and academic achievement. The onset of the symptoms is in the early development period, but may not fully manifest until social communication demands exceed limited capabilities. The symptoms are not attributable to another medical or neurological condition or to low abilities in the domains of word structure and grammar, and are not better explained by autism spectrum disorder, intellectual disability, or developmental delay.