Description of semantic--syntactic relations in an autistic child.

Researchers taught one autistic boy sign language. They tracked every sign he made for months. They looked at how he put signs together, not just single words.

The team wanted to see if his sentence patterns matched typical kids. They recorded every sign combo he used. They compared his grammar to normal development charts.

The boy learned hundreds of signs quickly. But he mixed them up in odd ways. He said 'cookie eat kitchen' instead of 'I eat cookies in the kitchen.'

His word order stayed strange even after years of training. He got the vocabulary but missed the grammar rules. This shows vocabulary size alone can fool you.

Aravamudhan et al. (2020) extends this work. They taught speech sounds to older autistic kids using prompts and rewards. Both studies show systematic training works, but the 2020 paper proves you can shape correct speech patterns too.

Murdock et al. (1977) is a predecessor. They taught articulation to kids with ID. Like James et al. (1981), they found you must train in multiple places with different people. Both warn that skills don't generalize automatically.

Halbur et al. (2021) used similar single-case methods. They taught sound discrimination to autistic kids. While L et al. tracked sign grammar, Halbur showed high-contrast sounds work better than words for early training.

Don't just count words. Watch how your learner puts them together. When teaching signs, track word order and grammar patterns. If patterns stay odd, add specific grammar drills. This prevents false hope from big vocabularies hiding weak syntax.