Evidence map›Paper›PMID 34690906›Full record

ArticleFrontiers in neurology2021

Identification of Negative BOLD Responses in Epilepsy Using Windkessel Models.

Alejandro Suarez, Pedro A Valdés-Hernández, Byron Bernal, Catalina Dunoyer, Hui Ming Khoo, Jorge Bosch-Bayard, Jorge J Riera

Open access · goldAbstract read
In one paragraph

Article in Frontiers in neurology, 2021. 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
0.2field-weighted citation impact, top 49% 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, 4 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  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

7 authors at 4 institutions in 3 countries.

Alejandro SuarezNeuronal Mass Dynamics Laboratory, Florida International University, Miami, FL, United States.
Pedro A Valdés-HernándezNeuronal Mass Dynamics Laboratory, Florida International University, Miami, FL, United States.
Byron BernalNicklaus Children Hospital, Miami, FL, United States.
Catalina DunoyerNicklaus Children Hospital, Miami, FL, United States.
Hui Ming KhooMontreal Neurological Institute, McGill University, Montreal, QC, Canada.
Jorge Bosch-BayardMontreal Neurological Institute, McGill University, Montreal, QC, Canada.
Jorge J RieraNeuronal Mass Dynamics Laboratory, Florida International University, Miami, FL, United States.
Florida International University · USMiami Children's Hospital · USMcGill University · CAMontreal Neurological Institute and Hospital · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Alongside positive blood oxygenation level-dependent (BOLD) responses associated with interictal epileptic discharges, a variety of negative BOLD responses (NBRs) are typically found in epileptic patients. Previous studies suggest that, in general, up to four mechanisms might underlie the genesis of NBRs in the brain: (i) neuronal disruption of network activity, (ii) altered balance of neurometabolic/vascular couplings, (iii) arterial blood stealing, and (iv) enhanced cortical inhibition. Detecting and classifying these mechanisms from BOLD signals are pivotal for the improvement of the specificity of the electroencephalography-functional magnetic resonance imaging (EEG-fMRI) image modality to identify the seizure-onset zones in refractory local epilepsy. This requires models with physiological interpretation that furnish the understanding of how these mechanisms are fingerprinted by their BOLD responses. Here, we used a Windkessel model with viscoelastic compliance/inductance in combination with dynamic models of both neuronal population activity and tissue/blood O

Indexed as

EEG-fMRI multimodalepilepsygeneral linear modelhemodynamic response functionmachine learningnegative BOLD responsesWindkessel models

Identifiers

PMID34690906
PMCPMC8531269
OpenAlexW3203480937

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.