Evidence map›Paper›PMID 16761264›Full record

ArticleHuman brain mapping2007

Comparison of different cortical connectivity estimators for high-resolution EEG recordings.

Laura Astolfi, Febo Cincotti, Donatella Mattia, M Grazia Marciani, Luiz A Baccala, Fabrizio de Vico Fallani, Serenella Salinari, Mauro Ursino, Melissa Zavaglia, Lei Ding and 4 more

Abstract readComparative Study
In one paragraph

Article in Human brain mapping, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 129 papers.

0numbers the graph read from it
0cells of the map it votes in
129citing papers in PubMed
–field-weighted citation impact
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

129 citing papers in PubMed.

  1. Trial
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  6. Review
  7. Body Surface Potential Mapping: A Perspective on High-Density Cutaneous Electrophysiology.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
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  13. Article
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  15. EEG Information Transfer Changes in Different Daily Fatigue Levels During Drowsy Driving.IEEE open journal of engineering in medicine and biology · 2024
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article

69 more citing papers are in PubMed but not listed here.

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

14 authors.

Laura AstolfiDipartimento Informatica e Sistemistica, Universita La Sapienza, Rome, Italy. laura.astolfi@uniromal.it
Febo Cincotti
Donatella Mattia
M Grazia Marciani
Luiz A Baccala
Fabrizio de Vico Fallani
Serenella Salinari
Mauro Ursino
Melissa Zavaglia
Lei Ding
J Christopher Edgar
Gregory A Miller
Bin He
Fabio Babiloni

Funding

MECHANISMS OF ATTENTIONAL BIAS IN PSYCHOPATHOLOGYR01MH061358 · NIMH · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI HELLER, WENDY · 2000 to 2009
$2.6M
TRAINING IN COGNITIVE PSYCHOPHYSIOLOGYT32MH019554 · NIMH · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI HELLER, WENDY · 1992 to 2012
$2.3M
High Resolution EEG Source Imaging: Validation StudyR01EB000178 · NIBIB · UNIVERSITY OF MINNESOTA TWIN CITIES · PI HE, BIN · 2002 to 2005
$875k
Neurocognitive Mechanisms: Appetitive &Aversive EmotionR21DA014111 · NIDA · UNIVERSITY OF ILLINOIS URBANA-CHAMPAIGN · PI MILLER, GREGORY ALLEN · 2001 to 2003
$549k
NIBIB NIH HHS EB00178NIDA NIH HHS DA14111NIMH NIH HHS MH19554NIMH NIH HHS MH61358
6 · The paper itself

Abstract

The aim of this work is to characterize quantitatively the performance of a body of techniques in the frequency domain for the estimation of cortical connectivity from high-resolution EEG recordings in different operative conditions commonly encountered in practice. Connectivity pattern estimators investigated are the Directed Transfer Function (DTF), its modification known as direct DTF (dDTF) and the Partial Directed Coherence (PDC). Predefined patterns of cortical connectivity were simulated and then retrieved by the application of the DTF, dDTF, and PDC methods. Signal-to-noise ratio (SNR) and length (LENGTH) of EEG epochs were studied as factors affecting the reconstruction of the imposed connectivity patterns. Reconstruction quality and error rate in estimated connectivity patterns were evaluated by means of some indexes of quality for the reconstructed connectivity pattern. The error functions were statistically analyzed with analysis of variance (ANOVA). The whole methodology was then applied to high-resolution EEG data recorded during the well-known Stroop paradigm. Simulations indicated that all three methods correctly estimated the simulated connectivity patterns under reasonable conditions. However, performance of the methods differed somewhat as a function of SNR and LENGTH factors. The methods were generally equivalent when applied to the Stroop data. In general, the amount of available EEG affected the accuracy of connectivity pattern estimations. Analysis of 27 s of nonconsecutive recordings with an SNR of 3 or more ensured that the connectivity pattern could be accurately recovered with an error below 7% for the PDC and 5% for the DTF. In conclusion, functional connectivity patterns of cortical activity can be effectively estimated under general conditions met in most EEG recordings by combining high-resolution EEG techniques, linear inverse estimation of the cortical activity, and frequency domain multivariate methods such as PDC, DTF, and dDTF.

Indexed as

Brain MappingElectroencephalographyModels, NeurologicalAnalysis of VarianceCerebral CortexComputer SimulationHumansMagnetic Resonance ImagingNeural PathwaysSignal Processing, Computer-Assisted

Identifiers

PMID16761264
PMCPMC6871398

What OpenQuestion holds

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Registered trials

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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.