Evidence map›Paper›PMID 38913655›Full record

ArticlePloS one2024

A comparison of white matter microstructure and correlates with neuropsychological measures in younger and older adults.

Abu-Bakar Sheriff, Vanessa Scarapicchia, Erin L Mazerolle, Brian Christie, Jodie R Gawryluk

Abstract readComparative Study
In one paragraph

Article in PloS one, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Abu-Bakar SheriffDivision of Medical Sciences, University of Victoria, Victoria, BC, Canada.
Vanessa ScarapicchiaDepartment of Psychology, University of Victoria, Victoria, BC, Canada.
Erin L MazerolleDepartment of Psychology, St. Francis Xavier University, Antigonish, NS, Canada.
Brian ChristieDivision of Medical Sciences, University of Victoria, Victoria, BC, Canada.
Jodie R GawrylukDivision of Medical Sciences, University of Victoria, Victoria, BC, Canada.ORCID 0000-0003-4924-7517

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWith a globally aging population, there is a need to better understand how brain structure relates to function in healthy older and younger adults.

methods34 healthy participants divided into older (17; Mean = 70.9, SD = 5.4) and younger adults (17; Mean = 28.1, SD = 2.8) underwent diffusion-weighted imaging and neuropsychological assessment, including the California Verbal Learning Test 2nd Edition and the Trail Making Test (TMT-A and TMT-B). Differences in white matter microstructure for older and younger adults and the association between DTI metrics (fractional anisotropy, FA; mean diffusivity, MD) and cognitive performance were analyzed using tract-based spatial statistics (p < 0.05, corrected).

resultsOlder adults had significantly lower FA and higher MD than younger adults in widespread brain regions. There was a significant negative correlation between executive function (TMT-B) and MD for older adults in the right superior/anterior corona radiata and the corpus callosum. No significant relationship was detected between DTI metrics and executive function in younger adults or with memory performance in either group.

conclusionsThe findings underscore the need to examine brain-behaviour relationships as a function of age. Future studies should include comprehensive assessments in larger lifespan samples to better understand the aging brain.

Indexed as

Diffusion Tensor ImagingNeuropsychological TestsWhite MatterAdultAgedAged, 80 and overAgingAnisotropyBrainCognitionDiffusion Magnetic Resonance ImagingExecutive FunctionFemaleHumansMaleMiddle Aged

Identifiers

PMID38913655
PMCPMC11195942

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.