Evidence map›Paper›PMID 28197747›Full record

ArticleApplied psychophysiology and biofeedback2017

Upper Alpha Based Neurofeedback Training in Chronic Stroke: Brain Plasticity Processes and Cognitive Effects.

Silvia Erika Kober, Daniela Schweiger, Johanna Louise Reichert, Christa Neuper, Guilherme Wood

Open access · hybridAbstract read
In one paragraph

Article in Applied psychophysiology and biofeedback, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed, 1 pooled it
3.4field-weighted citation impact, top 7% 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

27 citing papers in PubMed, 1 synthesis or guideline pooled it, 62 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Review
  6. Article
  7. Brain-computer interface: an update for the clinicians.Frontiers in human neuroscience · 2026
    Review
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  12. Article
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  17. Article
  18. Session Frequency Matters in Neurofeedback Training of Athletes.Applied psychophysiology and biofeedback · 2021
    Article
  19. Article
  20. 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 at 3 institutions in 1 country.

Silvia Erika KoberDepartment of Psychology, University of Graz, Universitaetsplatz 2/III, 8010, Graz, Austria. silvia.kober@uni-graz.at.
Daniela SchweigerDepartment of Psychology, University of Graz, Universitaetsplatz 2/III, 8010, Graz, Austria.
Johanna Louise ReichertDepartment of Psychology, University of Graz, Universitaetsplatz 2/III, 8010, Graz, Austria.
Christa NeuperDepartment of Psychology, University of Graz, Universitaetsplatz 2/III, 8010, Graz, Austria.
Guilherme WoodDepartment of Psychology, University of Graz, Universitaetsplatz 2/III, 8010, Graz, Austria.
University of Graz · ATGraz University of Technology · ATMedical University of Graz · AT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In the present study, we investigated the effects of upper alpha based neurofeedback (NF) training on electrical brain activity and cognitive functions in stroke survivors. Therefore, two single chronic stroke patients with memory deficits (subject A with a bilateral subarachnoid hemorrhage; subject B with an ischemic stroke in the left arteria cerebri media) and a healthy elderly control group (N = 24) received up to ten NF training sessions. To evaluate NF training effects, all participants performed multichannel electroencephalogram (EEG) resting measurements and a neuropsychological test battery assessing different cognitive functions before and after NF training. Stroke patients showed improvements in memory functions after successful NF training compared to the pre-assessment. Subject B had a pathological delta (0.5-4 Hz) and upper alpha (10-12 Hz) power maximum over the unaffected hemisphere before NF training. After NF training, he showed a more bilateral and "normalized" topographical distribution of these EEG frequencies. Healthy participants as well as subject A did not show any abnormalities in EEG topography before the start of NF training. Consequently, no changes in the topographical distribution of EEG activity were observed in these participants when comparing the pre- and post-assessment. Hence, our results show that upper alpha based NF training had on the one hand positive effects on memory functions, and on the other hand led to cortical "normalization" in a stroke patient with pathological brain activation patterns, which underlines the potential usefulness of NF as neurological rehabilitation tool.

Indexed as

AgedAlpha RhythmBrainBrain IschemiaCognitionElectroencephalographyFemaleHumansIntracranial HemorrhagesMaleMiddle AgedNeurofeedbackNeuronal PlasticityNeuropsychological TestsStrokeStroke RehabilitationCortical reorganizationMemoryNeurofeedbackStroke recovery

Identifiers

PMID28197747
PMCPMC5344963
OpenAlexW2588902455

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.