Older adults show a more diffused cortical network involving frontal and ventral regions, whereas younger adults show a streamlined auditory network during speech-in-noise processing¶
Claim · All claims
Evidence · 1 study · associationalr1·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? Inter-regional correlation analysis seeded in left STG showed stronger correlations with frontal regions in older subjects but stronger correlation with right STG in younger subjects in the SNR -5 condition. → Wong Patrick C. M. 2009
Evidence¶
Wong Patrick C. M. 2009¶
Wong Patrick C. M., Jin James Xumin, Gunasekera Geshri M., Abel Rebekah, Lee Edward R., Dhar Sumitrajit. (2009). Aging and Cortical Mechanisms of Speech Perception in Noise. Neuropsychologia 47(3), 693-703. https://doi.org/10.1016/j.neuropsychologia.2008.11.032
q3 · i? · associational · r1
Whole-brain cross-correlation analysis seeded at a left STG voxel in the SNR -5 condition, comparing Fisher-z transformed correlations between groups (12 older, 12 younger). The older group showed significant correlations with frontal regions including PFC (Table 3), while younger subjects correlated only with right STG, and at subthreshold extent.
"Figure 7 (bottom panel) shows a voxel-wise statistical comparison between the two groups, which confirmed that inter-regional correlation was stronger from left STG to PFC and from left STG to right STG for the older and younger groups, respectively."
Discussion¶
Learner Variables¶
- Auditory Processing — predictor: learners who differ on it differ in outcomes
Related Claims¶
- Older adults show reduced activation in auditory cortex and increased activation in prefrontal and precuneus regions during speech-in-noise processing — related
- Activation in frontal and parietal cognitive regions is positively correlated with speech-in-noise behavioral performance in older listeners, supporting a compensatory role — related
- Group x condition interactions show condition-dependent activation differences in superior temporal, parietal, cingulate, medial frontal, and middle temporal regions — related
- Older adults show reduced accuracy in severe noise (SNR -5) but perform comparably to younger adults in quiet and moderate noise (SNR 20) — related
- Middle temporal gyrus activation in older listeners correlates with performance only in non-debilitating listening conditions, not in severe noise — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
aging-diffused-cortical-network-speech-noise |
title |
Older adults show a more diffused cortical network involving frontal and ventral regions, whereas younger adults show a streamlined auditory network during speech-in-noise processing |
description |
Older adults show a more diffused cortical network involving frontal and ventral regions, whereas younger adults show a streamlined auditory network during speech-in-noise processing |
status |
review |
evidence_strength |
moderate |
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 — wong-patrick-c-m-2009 |
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