Evidence map›Paper›PMID 32396540›Full record

ArticlePloS one2020

Functional magnetic resonance imaging of the trail-making test in older adults.

Natasha Talwar, Nathan W Churchill, Megan A Hird, Fred Tam, Simon J Graham, Tom A Schweizer

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.9field-weighted citation impact, top 8% of its field
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

18 citing papers in PubMed, 29 citations in OpenAlex.

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  7. Cortical and subcortical morphometric changes and their relation to cognitive impairment in isolated REM sleep behavior disorder.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2024
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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

6 authors at 2 institutions in 1 country.

Natasha TalwarKeenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada.ORCID 0000-0002-2926-6457
Nathan W ChurchillKeenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada.
Megan A HirdKeenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada.
Fred TamPhysical Sciences Platform, Sunnybrook Research Institute, Toronto, Canada.
Simon J GrahamPhysical Sciences Platform, Sunnybrook Research Institute, Toronto, Canada.ORCID 0000-0002-9647-6569
Tom A SchweizerKeenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, Canada.
St. Michael's Hospital · CASunnybrook Health Science Centre · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The trail-making test (TMT) is a popular neuropsychological test, which is used extensively to measure cognitive impairment associated with neurodegenerative disorders in older adults. Behavioural performance on the TMT has been investigated in older populations, but there is limited research on task-related brain activity in older adults. The current study administered a naturalistic version of the TMT to a healthy older-aged population in an MRI environment using a novel, MRI-compatible tablet. Functional MRI was conducted during task completion, allowing characterization of the brain activity associated with the TMT. Performance on the TMT was evaluated using number of errors and seconds per completion of each link. Results are reported for 36 cognitively healthy older adults between the ages of 52 and 85. Task-related activation was observed in extensive regions of the bilateral frontal, parietal, temporal and occipital lobes as well as key motor areas. Increased age was associated with reduced brain activity and worse task performance. Specifically, older age was correlated with decreased task-related activity in the bilateral occipital, temporal and parietal lobes. These results suggest that healthy older aging significantly affects brain function during the TMT, which consequently may result in performance decrements. The current study reveals the brain activation patterns underlying TMT performance in a healthy older aging population, which functions as an important, clinically-relevant control to compare to pathological aging in future investigations.

Indexed as

Trail Making TestAgedAged, 80 and overAgingBrainCognitionCohort StudiesComputers, HandheldFemaleFunctional NeuroimagingHealthy VolunteersHumansMagnetic Resonance ImagingMaleMiddle Aged

Identifiers

PMID32396540
PMCPMC7217471
OpenAlexW3026031459

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.