Difficulty in writing Japanese semantic characters in a 9-year-old boy with Williams syndrome.
In Williams syndrome, strong talking can hide weak writing when spatial memory is the bottleneck.
01Research in Context
What this study did
Doctors watched one 9-year-old boy with Williams syndrome write Japanese Kanji.
He could read the characters aloud but could not write them from memory.
The team linked the writing block to poor spatial memory, not to vocabulary.
What they found
Reading and writing split apart: the boy understood the words yet drew them wrong.
His spatial memory scores were low, while his vocabulary stayed a relative strength.
How this fits with other research
Grindle et al. (2012) later tested many children with Williams syndrome and also saw low scores on every language test except visual reception, showing the single case was not a fluke.
Libero et al. (2016) tracked the same syndrome over years and found expressive vocabulary grows faster than sentence comprehension, so writing may lag even when talking sounds good.
Cheng-Lai et al. (2013) and Lam et al. (2011) saw similar handwriting pain in Chinese children with dyslexia, hinting that logographic scripts expose spatial memory problems across diagnoses.
Why it matters
If you test a child with Williams syndrome, do not trust strong oral vocabulary as proof that written work will follow. Add a quick Kanji or Chinese copy task, or simply ask the child to draw and recall simple shapes. Poor results flag a spatial memory target, not a reading failure, and guide you to build visual-spatial supports before handwriting practice.
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Join Free →Place three simple shapes on a page, let the child look for five seconds, remove the page, and ask him to draw what he saw—poor copies signal spatial memory work before handwriting drills.
02At a glance
03Original abstract
A 9-year-old boy diagnosed as having Williams syndrome was evaluated using psychological test batteries in order to clarify his ability in language and visual cognition. The subject had difficulty in writing some of the Japanese semantic characters (called Kanji) which he could otherwise read and understand. Although he could write the small components of which the Kanji characters were composed, he could not locate these correctly. This phenomenon is considered to be very similar to the difficulty in copying a figure observed clinically. The Kaufmann Assessment Batteries for Children clearly revealed that the boy had difficulty with the sub-test of spatial memory compared to his average score for simultaneous processing. This result is considered to be closely related to the difficulty in copying figures or writing Kanji characters. On the Illinois Test of Psycholinguistic Abilities, the present authors found that the subject's vocabulary was relatively good, although semantic and pragmatic problems remained. Clarifying the strong and weak points of the abilities of such patients will help to determine the most appropriate mode of education for them.
Journal of intellectual disability research : JIDR, 1999 · doi:10.1046/j.1365-2788.1999.00237.x