Early reading and spelling abilities in children with severe speech and physical impairment: a cross-linguistic comparison.

Larsson et al. (2009) compared early reading and spelling in Irish and Swedish children with severe speech and physical impairment.

Both groups had SSPI and used communication aids. The team tested phonological awareness and literacy skills.

Irish kids with SSPI read better than Swedish peers. Both groups showed phonological awareness, but they used it differently.

The authors say the clearer letter-to-sound rules in Irish helped the children read more easily.

Macchi et al. (2014) looked like a contradiction. They found most children with specific language impairment had big reading delays. The difference is diagnosis: Lucie studied SLI, while Maria studied SSPI. Speech motor limits are not the same as core language deficits.

Chiviacowsky et al. (2013) and Gallego et al. (2016) echo the timing idea. Early Cued Speech or early cochlear implants let deaf children reach grade-level reading. Together these papers show that early, clear language input matters more than the exact diagnosis.

Macdonald et al. (2021) adds a twist: some kids with ASD and hyperlexia read words without strong phonology. The SSPI children still had phonology, so the lesson is to check both routes—phonological and visual—before picking teaching tools.

If you work with non-speaking children, do not assume poor reading. Test both phonological awareness and orthographic knowledge. Pick books that match the transparency of your language, and use consistent letter-sound aids. Start early and track which cues each child uses best.