Functional connectivity between parietal cortex and occipito-temporal cortex during numerical processing is present in adults but absent in children, whose IFG instead correlates with both regions¶
Claim · All claims
Evidence · 1 study · associationalr2·q3
Currency · newest study 2009 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2014: 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? BOLD ratio effects in left superior parietal cortex correlated with OTC in adults but not in children, with the group difference marginally significant. → Cantlon Jessica F. 2009
Evidence¶
Cantlon Jessica F. 2009¶
Cantlon Jessica F., Libertus Melissa E., Pinel Philippe, Dehaene Stanislas, Brannon Elizabeth M., Pelphrey Kevin A. (2009). The Neural Development of an Abstract Concept of Number. Journal of Cognitive Neuroscience. https://doi.org/10.1162/jocn.2008.21159
q3 · i? · associational · r2
Correlational analysis of ratio-dependent BOLD variability across children and adults. In children, IFG ratio effects correlated with parietal and OTC effects, but "there was no correlation between the BOLD ratio effect in left superior parietal cortex and OTC in children (r = −.10, p = .74)."
"Interestingly, however, there was a correlation between BOLD activity in left superior parietal cortex and OTC in adults (right OTC: r = .59, p < .05; left OTC: r = .49, p = .07). In addition, the difference between children and adults in the strength of the correlation between parietal and OTC was marginally significant (χ2 = 3.33, p = .07)."
Discussion¶
Related Claims¶
- In children, the BOLD numerical ratio effect correlates with individual differences in the behavioral ratio effect in right OTC, left superior parietal cortex, and bilateral IFG; no such correlation reaches significance in adults — related
- The numerical ratio effect in BOLD activity appears in superior parietal cortex in adults but in inferior frontal gyrus, precentral gyrus, and thalamus in children, with no group-level parietal ratio effect in children — related
- Children and adults engage a common network of occipito-temporal, precentral, and superior parietal cortices during numerical judgments of both Arabic numerals and dot arrays — related
- Children show greater inferior frontal gyrus activity than adults during numerical comparisons, while adults show greater left superior parietal activity than children — related
- Among children, differences in Arabic numeral performance are associated with ratio-dependent BOLD differences in left superior parietal cortex and right OTC, but dot array performance differences show no such brain differences — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
parietal-otc-connectivity-adults-not-children |
title |
Functional connectivity between parietal cortex and occipito-temporal cortex during numerical processing is present in adults but absent in children, whose IFG instead correlates with both regions |
description |
Functional connectivity between parietal cortex and occipito-temporal cortex during numerical processing is present in adults but absent in children, whose IFG instead correlates with both regions |
status |
review |
evidence_strength |
weak |
newest_evidence |
2009 |
recheck_by |
2014 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — cantlon-jessica-f-2009 |
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