Evidence map›Paper›PMID 31597927›Full record

ArticleScientific reports2019

Task-evoked Negative BOLD Response and Functional Connectivity in the Default Mode Network are Representative of Two Overlapping but Separate Neurophysiological Processes.

David B Parker, Qolamreza R Razlighi

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.6field-weighted citation impact, top 10% 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, 1 synthesis or guideline pooled it, 33 citations in OpenAlex.

  1. Pooled it
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  4. Habenula-ventral tegmental area functional coupling and risk aversion in humans.Proceedings of the National Academy of Sciences of the United States of America · 2025
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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

2 authors at 1 institution in 1 country.

David B ParkerDepartment of Biomedical Engineering, Columbia University, New York, NY, 10027, USA.
Qolamreza R RazlighiDepartment of Biomedical Engineering, Columbia University, New York, NY, 10027, USA. qr2108@columbia.edu.
Columbia University · US

Funding

Functional Connectivity Network in default mode regions provides the underlying infrastructure for task-based functional co-de/activation networksR01AG057962 · NIA · WEILL MEDICAL COLL OF CORNELL UNIV · PI RAZLIGHI, QOLAMREZA RAY · 2018 to 2022
$4.0M
Analyzing age-related changes of brain activation in subjects native spaceK01AG044467 · NIA · COLUMBIA UNIVERSITY HEALTH SCIENCES · PI RAZLIGHI, QOLAMREZA RAY · 2013 to 2017
$636k
NIA NIH HHS K01 AG044467NIA NIH HHS R01 AG057962
6 · The paper itself

Abstract

The topography of the default mode network (DMN) can be obtained with one of two different functional magnetic resonance imaging (fMRI) methods: either from the spontaneous but organized synchrony of the low-frequency fluctuations in resting-state fMRI (rs-fMRI), known as "functional connectivity", or from the consistent and robust deactivations in task-based fMRI (tb-fMRI), here referred to as the "negative BOLD response" (NBR). These two methods are fundamentally different, but their results are often used interchangeably to describe the brain's resting-state, baseline, or intrinsic activity. While the DMN was initially defined by consistent task-based decreases in blood flow in a set of specific brain regions using PET imaging, recently nearly all studies on the DMN employ functional connectivity in rs-fMRI. In this study, we first show the high level of spatial overlap between NBR and functional connectivity of the DMN extracted from the same tb-fMRI scan; then, we demonstrate that the NBR in putative DMN regions can be significantly altered without causing any change in their overlapping functional connectivity. Furthermore, we present evidence that in the DMN, the NBR is more closely related to task performance than the functional connectivity. We conclude that the NBR and functional connectivity of the DMN reflect two separate but overlapping neurophysiological processes, and thus should be differentiated in studies investigating brain-behavior relationships in both healthy and diseased populations. Our findings further raise the possibility that the macro-scale networks of the human brain might internally exhibit a hierarchical functional architecture.

Indexed as

Acoustic StimulationAdultBrainConnectomeDatabases, FactualFemaleFunctional NeuroimagingHumansMagnetic Resonance ImagingMaleNerve NetOxygenPhotic StimulationRestTask Performance and AnalysisYoung AdultOxygen

Identifiers

PMID31597927
PMCPMC6785640
OpenAlexW2979593753

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.