Fine motor skill and expressive language in minimally verbal and verbal school-aged autistic children.
Lindsay K Butler, Helen Tager-Flusberg
PMID 36578205WHAT IT FOUND
In autistic children aged 4 to 7, better fine motor skills linked to clearer speech only in minimally verbal children.
For all children, fine motor skills and adaptive behavior predicted longer utterances. Conversational turns depended on adaptive behavior alone, not motor skill.
Key findings
01Fine motor skill predicted speech intelligibility for minimally verbal children, but not for verbal children.
02Fine motor skill predicted mean length of utterance for both minimally verbal and verbal children.
03Adaptive behavior was the only significant predictor of conversational turns, not fine motor skill.
STILL TO COME
How it was doneWhat they foundWhat it means for PTsWhat it means for OTsWhat it means for SLPs
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What it does not show
Fine motor skills were measured by parent report on the Vineland, not by direct observation or standardized motor testing, which may introduce bias or lack sensitivity to specific motor deficits. The study was cross-sectional, so it identifies associations but cannot prove that improving fine motor skills will improve speech or language. The definition of 'minimally verbal' was based on a 15-minute home sample rather than the standard 20-minute clinical sample or ADOS module, which may affect comparability with other studies. The study did not include children under 4 or over 7, limiting generalizability to other age groups.
Declared interests
The authors have no conflicts of interest related to this publication.
The easy way to misread this
Do not assume that improving fine motor skills will directly improve conversational turn-taking. The study found that adaptive behavior, not fine motor skill, predicted the number of conversational turns. Motor skill was linked to speech clarity in minimally verbal children and utterance length in all children, but not to the frequency of back-and-forth interaction.