Just double checked. It is not true to say there is no research in this area, but of course it is very limited. "Reading without Speech: A Study of Children with Cerebral Palsy" is a study of 10 children only from 1989. The abstract states that "Speech production ability was found to correlate significantly with sound blending skills". How you can have significance with a cohort of 10 I'm not sure.
A more recent study from 2007, "Foundations of phonological awareness in pre-school children with cerebral palsy: the impact of
intellectual disability" studied phonological awareness of 54 children with CP and 71 normally developing children. I've only scanned the article, but I think they've found that there is a relationship between speech abilities and rhyming.
So this comes back to my original point: is it possible that tongue tie could have such far reaching consequences?
Eithne Murray
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