Evidence map›Paper›PMID 34580164›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2021

Does Hemispheric Asymmetry Reduction in Older Adults in Motor Cortex Reflect Compensation?

Ethan Knights, Alexa M Morcom, Richard N Henson

Open access · hybridAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 2 syntheses or guidelines pooled it, 48 citations in OpenAlex.

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  7. Neural Compensation in the Medial Prefrontal Cortex Preserves Self-Prioritization in Aging: A Computational Approach.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
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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

3 authors at 2 institutions in 2 countries.

Ethan KnightsMedical Research Council Cognition and Brain Sciences Unit, University of Cambridge, Cambridge CB2 7EF, England ethan.knights@mrc-cbu.cam.ac.uk.ORCID 0000-0001-6078-9160
Alexa M MorcomSchool of Psychology, University of Sussex, Brighton BN1 4GE, England.ORCID 0000-0003-4654-5308
Richard N HensonMedical Research Council Cognition and Brain Sciences Unit, University of Cambridge, Cambridge CB2 7EF, England.ORCID 0000-0002-0712-2639
MRC Cognition and Brain Sciences Unit · GBUniversity of Sussex · GB

Funding

Biotechnology and Biological Sciences Research Council BB/H008217/1Medical Research Council MC_UU_00005/8
6 · The paper itself

Abstract

Older adults tend to display greater brain activation in the nondominant hemisphere during even basic sensorimotor responses. It is debated whether this hemispheric asymmetry reduction in older adults (HAROLD) reflects a compensatory mechanism. Across two independent fMRI experiments involving adult life span human samples (

Indexed as

AdolescentAdultAgedAged, 80 and overAgingFemaleFunctional LateralityHumansMagnetic Resonance ImagingMaleMiddle AgedMotor CortexPsychomotor PerformanceYoung AdultagingcompensationHAROLDlife spanmotor cortexmultivariate Bayes

Identifiers

PMID34580164
PMCPMC8580140
OpenAlexW3167262133

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.