Infantile autism and developmental receptive dysphasia: a comparative follow-up into middle childhood.

The team tracked two small groups of preschool boys for five years. One group had autism. The other had severe receptive dysphasia, a condition where children cannot understand spoken words. They tested language, play, and social skills every year until the boys were eight to ten years old.

By middle childhood, the picture looked very different. Almost half of the dysphasic boys now spoke in full sentences. Most of the autistic boys still had no useful speech. Surprisingly, the dysphasic boys now showed more trouble making friends than the autistic group. Language had moved forward; social life had slipped back.

Reichard et al. (2019) later showed that receptive vocabulary in autistic children keeps growing at the same slow pace as typical peers. Their data fit the current study: autistic kids do gain words, just never enough to close the gap. Cohen et al. (1990) found that autistic preschoolers can beat normative language growth rates no matter what classroom they sit in. That hopeful message lines up with the small gains seen here. McGonigle-Chalmers et al. (2013) add a twist: even nonverbal autistic kids can understand grammar on a touch screen. The present study saw almost no spoken output, but receptive syntax may still be hiding inside.

When you write an IFSP or an IEP, set separate goals for understanding words and for using them. A child who looks 'nonverbal' might still follow complex syntax. Also watch peer skills in kids who once had only language delay; their social risk can rise after the words show up. Plan social groups and peer modeling early, not just speech drills.