Evidence map›Paper›PMID 33941692›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

Cognitive impairment after focal brain lesions is better predicted by damage to structural than functional network hubs.

Justin Reber, Kai Hwang, Mark Bowren, Joel Bruss, Pratik Mukherjee, Daniel Tranel, Aaron D Boes

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
6.9field-weighted citation impact, top 2% 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

45 citing papers in PubMed, 76 citations in OpenAlex.

  1. Trial
  2. Frontoparietal Hub Connectivity Integrates Information from Multiple Sources.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
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  9. Frontoparietal Hubs Leverage Probabilistic Representations and Integrated Uncertainty to Guide Cognitive Flexibility.The Journal of neuroscience : the official journal of the Society for Neuroscience · 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

7 authors at 3 institutions in 1 country.

Justin ReberDepartment of Psychiatry, Carver College of Medicine, Iowa City, IA 52242; justin-reber@uiowa.edu.ORCID 0000-0002-4489-569X
Kai HwangDepartment of Psychological and Brain Sciences, University of Iowa, Iowa City, IA, 52242.
Mark BowrenDepartment of Neurology (Division of Neuropsychology and Cognitive Neuroscience), Carver College of Medicine, Iowa City, IA, 52242.ORCID 0000-0003-3304-6921
Joel BrussDepartment of Neurology (Division of Neuropsychology and Cognitive Neuroscience), Carver College of Medicine, Iowa City, IA, 52242.
Pratik MukherjeeDepartment of Radiology and Bioengineering, University of California, San Francisco, CA 94143.
Daniel TranelDepartment of Neurology (Division of Neuropsychology and Cognitive Neuroscience), Carver College of Medicine, Iowa City, IA, 52242.ORCID 0000-0002-1338-1389
Aaron D BoesDepartment of Psychiatry, Carver College of Medicine, Iowa City, IA 52242.ORCID 0000-0002-7865-9257
Carver Bible College · USUniversity of Iowa · USUniversity of California, San Francisco · US

Funding

The Neurobiology of Social Decision-Making: Social Inference and ContextP50MH094258 · NIMH · CALIFORNIA INSTITUTE OF TECHNOLOGY · PI O'DOHERTY, JOHN P · 2012 to 2021
$18.6M
The Iowa Neuroscience Specialty Program in Research Education (INSPIRE)T32MH019113 · NIMH · UNIVERSITY OF IOWA · PI HANNA E STEVENS, John A Wemmie · 1991 to 2026
$5.6M
Cognitive Control Functions of the Human ThalamusR01MH122613 · NIMH · UNIVERSITY OF IOWA · PI HWANG, KAI · 2020 to 2024
$2.2M
Predicting Cognitive Outcomes from Stroke Based on Lesion LocationR01NS114405 · NINDS · UNIVERSITY OF IOWA · PI BOES, AARON D · 2020 to 2024
$2.1M
University of Iowa - Research 3T MRI Connectome UpgradeS10OD025025 · OD · UNIVERSITY OF IOWA · PI MAGNOTTA, VINCENT A · 2018 to 2018
$1.9M
Mechanisms of Health and Disease at the Behavioral-Biomedical InterfaceT32GM108540 · NIGMS · UNIVERSITY OF IOWA · PI LUTGENDORF, SUSAN K, VOSS, MICHELLE WEBB · 2014 to 2023
$1.7M
Investigating the Effects of Transcranial Magnetic Stimulation with Intracranial EEG in HumansR21MH120441 · NIMH · UNIVERSITY OF IOWA · PI BOES, AARON D, OYA, HIROYUKI · 2019 to 2020
$425k
NIGMS NIH HHS T32 GM108540NIH HHS S10 OD025025NIMH NIH HHS P50 MH094258NIMH NIH HHS R01 MH122613NIMH NIH HHS R21 MH120441NIMH NIH HHS T32 MH019113NINDS NIH HHS R01 NS114405
6 · The paper itself

Abstract

Hubs are highly connected brain regions important for coordinating processing in brain networks. It is unclear, however, which measures of network "hubness" are most useful in identifying brain regions critical to human cognition. We tested how closely two measures of hubness-edge density and participation coefficient, derived from white and gray matter, respectively-were associated with general cognitive impairment after brain damage in two large cohorts of patients with focal brain lesions (N = 402 and 102, respectively) using cognitive tests spanning multiple cognitive domains. Lesions disrupting white matter regions with high edge density were associated with cognitive impairment, whereas lesions damaging gray matter regions with high participation coefficient had a weaker, less consistent association with cognitive outcomes. Similar results were observed with six other gray matter hubness measures. This suggests that damage to densely connected white matter regions is more cognitively impairing than similar damage to gray matter hubs, helping to explain interindividual differences in cognitive outcomes after brain damage.

Indexed as

AdultBrainBrain InjuriesBrain MappingCerebral CortexCognitionCognition DisordersCognitive DysfunctionFemaleGray MatterHumansMagnetic Resonance ImagingMaleNerve NetNeural PathwaysNeuropsychological Testsbrain networksedge densityfunctional connectivityparticipation coefficientstructural connectivity

Identifiers

PMID33941692
PMCPMC8126860
OpenAlexW3158547813

What OpenQuestion holds

Textmetadata
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.