Nonverbal autism
Nonverbal autism, also called nonspeaking autism, is a subset of autism spectrum disorder (ASD) where the person does not learn how to speak. == Background == Early intervention in nonspeaking autism emphasizes the critical role of language acquisition before the age of five in predicting positive developmental outcomes; acquiring language before age five is a good indicator of positive child development, that early language development is crucial to educational achievement, employment, independence during adulthood, and social relationships.