Evidence map›Paper›PMID 33540370›Full record

SynthesisNeuroImage. Clinical2021

Reduced functional connectivity of default mode network subsystems in depression: Meta-analytic evidence and relationship with trait rumination.

Leonardo Tozzi, Xue Zhang, Megan Chesnut, Bailey Holt-Gosselin, Carolina A Ramirez, Leanne M Williams

Abstract readMeta-Analysis
In one paragraph

Synthesis in NeuroImage. Clinical, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 71 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
71citing papers in PubMed, 4 pooled it
–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

71 citing papers in PubMed, 4 syntheses or guidelines pooled it.

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11 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

6 authors.

Leonardo TozziDepartment of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA.
Xue ZhangDepartment of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA.
Megan ChesnutDepartment of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA.
Bailey Holt-GosselinDepartment of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA.
Carolina A RamirezDepartment of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA.
Leanne M WilliamsDepartment of Psychiatry and Behavioral Sciences, Stanford University, Stanford, USA; Sierra-Pacific Mental Illness Research, Education, and Clinical Center (MIRECC) Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA. Electronic address: leawilliams@stanford.edu.

Funding

Mapping connectomes for disordered emotional statesU01MH109985 · NIMH · STANFORD UNIVERSITY · PI WILLIAMS, LEANNE · 2017 to 2020
$3.1M
NIMH NIH HHS U01 MH109985
6 · The paper itself

Abstract

Resting-state functional connectivity changes in the default mode network (DMN) of patients with major depressive disorder (MDD) have been linked to rumination. The DMN is divided into three subsystems: a midline Core, a dorsal medial prefrontal cortex (DMPFC) subsystem, and a medial temporal lobe (MTL) subsystem. We examined resting-state functional connectivity within and between DMN subsystems in MDD and its association with rumination. First, we conducted a meta-analysis on a large multi-site dataset of 618 MDD and 683 controls to quantify the differences in DMN subsystem functional connectivity between MDD and controls. Second, we tested the association of DMN subsystem functional connectivity and rumination in a sample of 115 unmedicated participants with symptoms of anxiety/depression and 48 controls. In our meta-analysis, only functional connectivity in the DMN Core was significantly reduced in MDD compared to controls (g = -0.246, CI = [-0.417; -0.074], pFDR = 0.048). Functional connectivity in the DMPFC subsystem and between the Core and DMPFC subsystems was slightly reduced but not significantly (g = -0.162, CI = [-0.310; -0.013], pFDR = 0.096; g = -0.249, CI = [-0.464; -0.034], pFDR = 0.084). Results were heterogeneous across sites for connectivity in the Core and between Core and DMPFC (I

Indexed as

Major Depressive DisorderBrainBrain MappingDefault Mode NetworkDepressionHumansMagnetic Resonance ImagingNerve NetNeural PathwaysDefault modeDepressionFunctional MRIMeta-analysisResting stateRumination

Identifiers

PMID33540370
PMCPMC7856327

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.