Evidence map›Paper›PMID 33597891›Full record

ArticleFrontiers in physiology2020

Extracting Robust Biomarkers From Multichannel EEG Time Series Using Nonlinear Dimensionality Reduction Applied to Ordinal Pattern Statistics and Spectral Quantities.

Inga Kottlarz, Sebastian Berg, Diana Toscano-Tejeida, Iris Steinmann, Mathias Bähr, Stefan Luther, Melanie Wilke, Ulrich Parlitz, Alexander Schlemmer

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
1.3field-weighted citation impact, top 23% 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

4 citing papers in PubMed, 12 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. 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

9 authors at 4 institutions in 1 country.

Inga KottlarzMax Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
Sebastian BergMax Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
Diana Toscano-TejeidaDepartment of Cognitive Neurology, University Medical Center Göttingen, Göttingen, Germany.
Iris SteinmannDepartment of Cognitive Neurology, University Medical Center Göttingen, Göttingen, Germany.
Mathias BährDepartment of Neurology, University Medical Center Göttingen, Göttingen, Germany.
Stefan LutherMax Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
Melanie WilkeDepartment of Cognitive Neurology, University Medical Center Göttingen, Göttingen, Germany.
Ulrich ParlitzMax Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
Alexander SchlemmerMax Planck Institute for Dynamics and Self-Organization, Göttingen, Germany.
Universitätsmedizin Göttingen · DEMax Planck Institute for Dynamics and Self-Organization · DEUniversity of Göttingen · DEGerman Primate Center · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In this study, ordinal pattern analysis and classical frequency-based EEG analysis methods are used to differentiate between EEGs of different age groups as well as individuals. As characteristic features, functional connectivity as well as single-channel measures in both the time and frequency domain are considered. We compare the separation power of each feature set after nonlinear dimensionality reduction using t-distributed stochastic neighbor embedding and demonstrate that ordinal pattern-based measures yield results comparable to frequency-based measures applied to preprocessed data, and outperform them if applied to raw data. Our analysis yields no significant differences in performance between single-channel features and functional connectivity features regarding the question of age group separation.

Indexed as

biomarkerscoherenceEEG - Electroencephalogramfunctional connectivitymutual informationnonlinear dimensionality reductionordinal pattern statisticst-SNE (t-distributed stochastic neighbor embedding)

Identifiers

PMID33597891
PMCPMC7882607
OpenAlexW3128377643

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.