Cognitive profile of young children with Williams syndrome.
Most young kids with Williams syndrome talk well but build poorly—catch the spatial lag early and teach visual strategies, not just extra blocks.
01Research in Context
What this study did
The team looked at 3- to young learners with Williams syndrome. They gave each child a short battery of verbal, nonverbal, and spatial tests. The goal was to map the kids’ everyday cognitive strengths and gaps.
What they found
Almost every child scored far lower on spatial tasks than on talking or picture puzzles. The gap showed up even in preschoolers. Verbal skills stayed near age level, but block design and drawing tasks lagged by years.
How this fits with other research
Vugs et al. (2013) saw the same kind of visuospatial memory dip in kids with specific language impairment. The pattern looks like a shared weak link across syndromes.
von Rhein et al. (2015) used the same drawing-style tests to spot visuo-construction problems in teens after heart surgery. Their ROCFT method could help you track tiny spatial gains in Williams syndrome too.
Josseron et al. (2025) found that kids with DCD can transfer thinking tricks even when motor skills don’t generalize. That hints you should teach spatial strategies, not just practice blocks, in Williams syndrome.
Why it matters
You now have a clear early marker: weak block design plus strong chatter. Screen spatial skills by age three and start visual-spatial interventions right away. Fold in strategy talk—like verbal cues for left-right order—so the gap doesn’t widen once school adds maps, graphs, and math drawings.
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02At a glance
03Original abstract
BACKGROUND: There is very little research on the cognitive profile of young children with Williams syndrome (WS). METHOD: The present study utilised the Differential Ability Scales - Second Edition to examine the early cognitive abilities of 22 young children with WS (aged 3.98 to 7.70 years, 10 male and 12 female participants). RESULTS: Overall, IQ ranged from 38 (severely impaired) to 81.00 (low average). Consistent with Mervis et al. who looked at an older sample, over half (59.08%) of our young WS sample showed a significant and abnormal weakness in spatial ability relative to verbal ability. Moreover, 81.82% showed a significant and clinically unusual weakness in spatial ability relative to nonverbal reasoning ability. At the subtest level, only 4.55% of our sample showed a significant strength in naming vocabulary compared with verbal comprehension, while 13.64% showed a significant weakness in naming vocabulary relative to verbal comprehension. CONCLUSIONS: The results of the present study show cognitive heterogeneity, consistent with the literature on older children and adults with WS. There were variable levels of intellect and variable patterns of cognitive strength and weakness across both index and subtest scores. Findings highlight the need for individual assessment and management of young children with WS but also indicate that for the majority of WS individuals spatial skills are indeed an area of significant and abnormal weakness and should be a focus for early intervention.
Journal of intellectual disability research : JIDR, 2021 · doi:10.1111/jir.12860