Language Subdomains in Children on the Autism Spectrum: Cross-Sectional Study of Morphologically Rich Language

The findings support the hypothesis of a typical, though often delayed, language profile in children on the AS, in which grammatical development follows lexical growth. The grammatical development of children on the AS acquiring a morphologically rich language did not differ from that of younger vocabulary-matched TD peers. These results underscore the importance of assessing and targeting both vocabulary and grammar in parallel during early intervention for children on the AS.