Children with DD show hyper-connectivity, not reduced connectivity, between the IPS and fronto-parietal and default mode networks during arithmetic¶
Claim · All claims
Evidence · 1 study (2 entries) · associationalr2·q3
Currency · newest study 2014 · checked against its sources 2026-10-20 (automated, 2 of 2 entries) · not reviewed by a person · overdue for a recheck since 2019: baselines and conditions change
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? gPPI analysis revealed children with DD had greater IPS connectivity than TD children with bilateral middle, superior and left inferior frontal gyri, bilateral supramarginal and angular gyri, ventral medial prefrontal cortex, and anterior and posterior cingulate cortex. → Rosenberg-Lee 2014
q3 i? Hyper-connectivity effects were driven by positive connectivity in DD rather than reduced negative connectivity (anti-correlation). → Rosenberg-Lee 2014 (2)
Evidence¶
Rosenberg-Lee 2014¶
Rosenberg-Lee, M., Ashkenazi, S., Chen, T., Young, C. B., Geary, D. C., & Menon, V. (2014). Brain hyper-connectivity and operation-specific deficits during arithmetic problem solving in children with developmental dyscalculia. Developmental Science. https://doi.org/10.1111/desc.12216
q3 · i? · associational · r2
gPPI effective connectivity analysis with 2 × 2 × 2 ANOVA (Group, Operation, Hemisphere) in 16 DD and 20 TD children. The main effect of Group showed "children with DD had greater connectivity of the IPS with bilateral middle, superior and left inferior frontal gyri and bilateral supramarginal and angular gyri", plus DMN regions.
"children with DD had greater connectivity of the IPS with bilateral middle, superior and left inferior frontal gyri and bilateral supramarginal and angular gyri. The ventral medial prefrontal cortex, and anterior and posterior cingulate cortex also showed greater effective connectivity in the DD, compared to the TD group"
Rosenberg-Lee 2014 (2)¶
Rosenberg-Lee, M., Ashkenazi, S., Chen, T., Young, C. B., Geary, D. C., & Menon, V. (2014). Brain hyper-connectivity and operation-specific deficits during arithmetic problem solving in children with developmental dyscalculia. Developmental Science. https://doi.org/10.1111/desc.12216
q3 · i? · associational · r2
Follow-up visualization of connectivity t-scores in the same gPPI analysis established the direction of the group effect: "these effects were all driven by positive connectivity in the DD group, rather than reduced negative connectivity (i.e. anti-correlation)".
"Visualizing the connectivity strength in these clusters revealed that these effects were all driven by positive connectivity in the DD group, rather than reduced negative connectivity (i.e. anti-correlation) in the DD group"
Discussion¶
Learner Variables¶
- Learning Disabilities and Developmental Differences — predictor: learners who differ on it differ in outcomes
- Operations and Place Value — predictor: learners who differ on it differ in outcomes
Related Claims¶
- DD children fail to disengage the default mode network during demanding arithmetic, showing aberrant coupling with task-positive IPS regions — possibly the same claim (merge candidate)
- Children with DD show greater brain activation than TD children in parietal, occipito-temporal and prefrontal regions during both addition and subtraction — related
- Greater IPS connectivity correlates with worse reaction-time performance during addition but not subtraction in children — related
- Neuroimaging shows adults with DD exhibit stronger frontal activations during number semantics, reduced right parietal grey matter, and altered functional connectivity during non-symbolic magnitude comparison — related
- Adults with dyscalculia show hyper-connectivity between primary visual cortex and inferior occipital cortex and fusiform gyrus — related
- DD children show operation-specific hyperactivation: greater IPS, superior parietal lobule and fusiform activity during subtraction, while during addition only the right superior parietal lobule differs (lower in DD) — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
dd-ips-hyperconnectivity-fronto-parietal-dmn |
title |
Children with DD show hyper-connectivity, not reduced connectivity, between the IPS and fronto-parietal and default mode networks during arithmetic |
description |
Children with DD show hyper-connectivity, not reduced connectivity, between the IPS and fronto-parietal and default mode networks during arithmetic |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2014 |
source_checked |
2026-10-20 |
recheck_by |
2019 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
2 — rosenberg-lee-2014, rosenberg-lee-2014-2 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.