Evidence map›Paper›PMID 32760259›Full record

ArticleFrontiers in human neuroscience2020

Graded fMRI Neurofeedback Training of Motor Imagery in Middle Cerebral Artery Stroke Patients: A Preregistered Proof-of-Concept Study.

David M A Mehler, Angharad N Williams, Joseph R Whittaker, Florian Krause, Michael Lührs, Stefanie Kunas, Richard G Wise, Hamsaraj G M Shetty, Duncan L Turner, David E J Linden

Open access · goldAbstract read
In one paragraph

Article in Frontiers in human neuroscience, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 5 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 5 pooled it
2.1field-weighted citation impact, top 13% 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

16 citing papers in PubMed, 5 syntheses or guidelines pooled it, 33 citations in OpenAlex.

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  8. From lab to life: challenges and perspectives of fNIRS for haemodynamic-based neurofeedback in real-world environments.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 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

10 authors at 7 institutions in 4 countries.

David M A MehlerSchool of Psychology, Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff, United Kingdom.
Angharad N WilliamsSchool of Psychology, Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff, United Kingdom.
Joseph R WhittakerSchool of Physics and Astronomy, Cardiff University, Cardiff, United Kingdom.
Florian KrauseDepartment of Cognitive Neuroscience, Maastricht University, Maastricht, Netherlands.
Michael LührsDepartment of Cognitive Neuroscience, Maastricht University, Maastricht, Netherlands.
Stefanie KunasSchool of Psychology, Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff, United Kingdom.
Richard G WiseSchool of Psychology, Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff, United Kingdom.
Hamsaraj G M ShettyNeurology Department, University Hospital of Wales, Cardiff, United Kingdom.
Duncan L TurnerSchool of Health, Sport and Bioscience, University of East London, London, United Kingdom.
David E J LindenSchool of Psychology, Cardiff University Brain Research Imaging Centre (CUBRIC), Cardiff, United Kingdom.
Cardiff University · GBBrain Innovation (Netherlands) · NLCharité - Universitätsmedizin Berlin · DERadboud University Medical Center · NLUniversity Hospital of Wales · GBUniversity of East London · GBUniversity of Münster · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Ischemic stroke of the middle cerebral artery (MCA), a major brain vessel that supplies the primary motor and premotor cortex, is one of the most common causes for severe upper limb impairment. Currently available motor rehabilitation training largely lacks satisfying efficacy with over 70% of stroke survivors showing residual upper limb dysfunction. Motor imagery-based functional magnetic resonance imaging neurofeedback (fMRI-NF) has been suggested as a potential therapeutic technique to improve motor impairment in stroke survivors. In this preregistered proof-of-concept study (https://osf.io/y69jc/), we translated graded fMRI-NF training, a new paradigm that we have previously studied in healthy participants, to first-time MCA stroke survivors with residual mild to severe impairment of upper limb motor function. Neurofeedback was provided from the supplementary motor area (SMA) targeting two different neurofeedback target levels (low and high). We hypothesized that MCA stroke survivors will show (1) sustained SMA-region of interest (ROI) activation and (2) a difference in SMA-ROI activation between low and high neurofeedback conditions during graded fMRI-NF training. At the group level, we found only anecdotal evidence for these preregistered hypotheses. At the individual level, we found anecdotal to moderate evidence for the absence of the hypothesized graded effect for most subjects. These null findings are relevant for future attempts to employ fMRI-NF training in stroke survivors. The study introduces a Bayesian sequential sampling plan, which incorporates prior knowledge, yielding higher sensitivity. The sampling plan was preregistered together with

Indexed as

fMRIneurofeedbackpreregistrationrehabilitationstroke

Identifiers

PMID32760259
PMCPMC7373077
OpenAlexW3043155157

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.