In-scanner sentence judgment accuracy declines with faster word presentation rates, and dyslexic readers' accuracy declines disproportionately across rates¶
Claim · All claims
Evidence · 1 study · causalr1·q3
Currency · newest study 2014 · not yet checked against its sources · not reviewed by a person
Subclaims¶
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q3 i? Accuracy declined with greater rates of presentation, and the dyslexic group performed significantly worse than typical readers on the Fast and Medium conditions but not on the Slow condition. → Christodoulou JA 2014
Evidence¶
Christodoulou JA 2014¶
Christodoulou JA, Del Tufo SN, Lymberis J, Saxler PK, Ghosh SS, et al. (2014) Brain Bases of Reading Fluency in Typical Reading and Impaired Fluency in Dyslexia. PLoS ONE 9(7): e100552. https://doi.org/10.1371/journal.pone.0100552
q3 · i? · causal · r1
A 3x2 repeated measures ANOVA on in-scanner accuracy for 12 typical readers and 12 readers with dyslexia found a significant main effect of Condition and a significant "Group X Condition interaction". The dyslexic group was significantly worse on Fast and Medium but not Slow conditions.
"Accuracy declined with greater rates of presentation as indicated by a significant main effect of Condition [F(2,21) = 61.34, p, .0005]. Accuracy differences between groups varied as a function of presentation rate as shown by a significant Group X Condition interaction [F(2,21) = 8.46, p,.002]"
Discussion¶
Related Claims¶
- In-scanner sentence judgment accuracy correlates significantly with standardized reading fluency and phonological awareness scores across both groups — related
- Group differences in activation are more extensive when behavioral performance is equated across groups, indicating they are not a consequence of worse performance — related
- Typical readers respond faster than dyslexic readers overall, and responses slow as presentation rates increase, without a group-by-rate interaction for reaction time — related
- Typical readers show significantly greater rate-related activation gains than dyslexic readers in left prefrontal and left superior temporal regions — related
- The putative visual word form area increases activation with presentation rate similarly in both groups, with no group difference or group-by-rate interaction — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
presentation-rate-accuracy-decline-dyslexia-disproportionate |
title |
In-scanner sentence judgment accuracy declines with faster word presentation rates, and dyslexic readers' accuracy declines disproportionately across rates |
description |
In-scanner sentence judgment accuracy declines with faster word presentation rates, and dyslexic readers' accuracy declines disproportionately across rates |
status |
review |
evidence_strength |
moderate |
newest_evidence |
2014 |
generated |
by process:wiki-ingest on 2026-10-17 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — christodoulou-ja-2014 |
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