Associations of symptoms and subtypes of attention-deficit hyperactivity disorder with visuospatial planning ability in youth.
Inattention, not hyperactivity, drives visuospatial planning problems in youth with ADHD.
01Research in Context
What this study did
Chiang et al. (2013) tested 740 youths with and without ADHD.
They looked at how inattention and hyperactivity each link to visuospatial planning.
Kids copied puzzles while researchers scored speed and accuracy.
What they found
Only inattention predicted poor planning scores.
Hyperactive or impulsive symptoms added no extra risk.
The link held for both boys and girls across all ages.
How this fits with other research
Gau et al. (2013) saw the same pattern with short-term memory: inattention hurt, hyperactivity did not.
Fenollar-Cortés et al. (2017) later found the same for fine-motor errors.
Loh et al. (2011) seems to disagree; they saw visuospatial problems only when ADHD was paired with movement disorder.
The key difference is sample: Ru studied kids who had both ADHD and DCD, while Huey-Ling looked at general ADHD youth.
Why it matters
When you test a child with ADHD, expect planning trouble to rise with inattention, not with how much they move.
Use brief puzzle tasks like Tower tests to spot the deficit.
Target attention training first; motor or hyperactivity drills may not fix planning skills.
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02At a glance
03Original abstract
Little is known about which ADHD core symptom or subtype is most associated with visuospatial planning deficit. This issue was investigated in a sample of 408 youths with current DSM-IV diagnosis of ADHD, and 332 youths without lifetime ADHD, aged 8-17 years (mean age 12.02±2.24). All the participants and their mothers were interviewed using the Chinese Kiddie Epidemiologic version of the Schedule for Affective Disorders and Schizophrenia to obtain information about ADHD symptoms and diagnosis and other psychiatric disorders. In addition to clinical assessments, the participants were assessed with the WISC-III and the Stocking of Cambridge task of the Cambridge Neuropsychological Test Automated Battery. Multi-level regression models were used for data analysis. The results showed that univariate analyses revealed that inattention, hyperactivity, and impulsivity were significantly associated with visuospatial planning, and the magnitude of such association was amplified with increased task difficulties. Only inattention independently predicted visuospatial planning in a model that included all three ADHD symptoms. After further controlling for comorbidity, age of assessment, treatment with methylphenidate, and Full-scale IQ, inattention was still independently associated with visuospatial planning indexed by mean moves needed to solve problems. In subtype comparison, participants with combined subtype and those with prominently inattentive subtype, rather than prominently hyperactivity/impulsivity subtype, had poorer visuospatial planning performance. Our findings indicate that inattention is independently associated with impaired visuospatial planning, and dimensional approach retains the important distinction among ADHD symptoms than subtype approach in understanding the neuropsychological functioning of ADHD.
Research in developmental disabilities, 2013 · doi:10.1016/j.ridd.2013.06.020