STM and WM performance is worse in ADHD-C than in ADHD-I, while CE-related performance does not differ between subtypes¶
Claim · All claims
Evidence · 1 study · causalr?·q3
Currency · newest study 2015 · not yet checked against its sources · not reviewed by a person
Subclaims¶
Reading the evidence codes
q is the design tier, i the impact, n the sample, and the kind with its r
the rigour judged within that kind: what each code means.
This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.
q3 i? STM and WM performance is worse in ADHD-C than in ADHD-I. → Dovis 2015
q3 i? CE-related performance does not differ between the two subtypes. → Dovis 2015
Evidence¶
Dovis 2015¶
Dovis, S., Van der Oord, S., Wiers, R.W., & Prins, P.J.M. (2015). ADHD subtype differences in reinforcement sensitivity and visuospatial working memory. Journal of Clinical Child and Adolescent Psychology, 44(5), 859-874. https://doi.org/10.1080/15374416.2014.895940
q3 · i? · causal · r?
This is the direct subtype comparison from the experiment with 27 children with ADHD-I and 70 children with ADHD-C aged 9-12. The article reports that "STM and WM performance was worse in ADHD-C than in ADHD-I, whereas CE-related performance did not differ." This dissociation indicates the subtypes differ in STM but not in CE functioning. No effect sizes are printed in the supplied text, so impact is null.
"STM and WM performance was worse in ADHD-C than in ADHD-I, whereas CE-related performance did not differ."
Discussion¶
Related Claims¶
- Children with ADHD-C show impaired visuospatial STM and CE relative to typically developing controls, whereas children with ADHD-I show impaired CE but intact STM — related
- Both ADHD subtypes show equally pronounced motivational deficits that impair visuospatial STM and WM performance — reports the opposite
- High reinforcement improves STM and WM performance in both ADHD subtypes but not in controls — related
- Affect recognition deficits were not found unanimously across ADHD groups, suggesting a nuanced subtype-specific pattern — related
- The majority of children with ADHD-C is impaired on visuospatial working memory — related
- Memory and motivation represent independent neuropsychological domains in children with ADHD — related
- Visuospatial working memory and short-term memory impairments are most prevalent in children with ADHD-C relative to ADHD-I and typically developing controls — related
- In the ADHD-I restrictive subtype, visuospatial WM impairments are more prevalent than in controls but STM impairments are not — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
adhd-c-worse-stm-wm-than-adhd-i |
title |
STM and WM performance is worse in ADHD-C than in ADHD-I, while CE-related performance does not differ between subtypes |
description |
STM and WM performance is worse in ADHD-C than in ADHD-I, while CE-related performance does not differ between subtypes |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2015 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — dovis-2015 |
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