Evidence map›Paper›PMID 30666767›Full record

ArticleHuman brain mapping2019

Cortical and structural-connectivity damage correlated with impaired syntactic processing in aphasia.

Dirk-Bart den Ouden, Svetlana Malyutina, Alexandra Basilakos, Leonardo Bonilha, Ezequiel Gleichgerrcht, Grigori Yourganov, Argye E Hillis, Gregory Hickok, Chris Rorden, Julius Fridriksson

Open access · greenAbstract read
In one paragraph

Article in Human brain mapping, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 54 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
54citing papers in PubMed, 2 pooled it
6.7field-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

54 citing papers in PubMed, 2 syntheses or guidelines pooled it, 103 citations in OpenAlex.

  1. Pooled it
  2. Task-Free Functional Language Networks: Reproducibility and Clinical Application.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2020
    Pooled it
  3. Article
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  5. Characterizing Verb Argument Structure in Aphasia Using Dependency Parsers.Journal of speech, language, and hearing research : JSLHR · 2026
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  20. Effects of Transcranial Direct Current Stimulation on Graph Naming Function and Brain Connectivity in Postinfarction Aphasia Patients: An fMRI Study.Folia phoniatrica et logopaedica : official organ of the International Association of Logopedics and Phoniatrics (IALP) · 2024
    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

10 authors at 4 institutions in 1 country.

Dirk-Bart den OudenDepartment of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina.ORCID 0000-0001-6971-7606
Svetlana MalyutinaDepartment of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina.ORCID 0000-0003-4481-122X
Alexandra BasilakosDepartment of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina.ORCID 0000-0003-0053-1082
Leonardo BonilhaDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.ORCID 0000-0002-6153-8942
Ezequiel GleichgerrchtDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.ORCID 0000-0002-4212-4146
Grigori YourganovDepartment of Psychology, University of South Carolina, Columbia, South Carolina.
Argye E HillisDepartment of Neurology, Johns Hopkins University School of Medicine and Department of Cognitive Science, Johns Hopkins University, Baltimore, Maryland.ORCID 0000-0002-5192-1171
Gregory HickokSchool of Social Sciences, University of California, Irvine, California.
Chris RordenDepartment of Psychology, University of South Carolina, Columbia, South Carolina.ORCID 0000-0002-7554-6142
Julius FridrikssonDepartment of Communication Sciences and Disorders, University of South Carolina, Columbia, South Carolina.
University of South Carolina · USMedical University of South Carolina · USJohns Hopkins University · USUniversity of California, Irvine · US

Funding

Telerehab for Aphasia (TERRA)P50DC014664 · NIDCD · UNIVERSITY OF SOUTH CAROLINA AT COLUMBIA · PI FRIDRIKSSON, JULIUS · 2016 to 2025
$25.0M
Treating Depression and Enhancing Locomotor Recovery Post-strokeP20GM109040 · NIGMS · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI KAUTZ, STEVEN A. · 2014 to 2024
$23.5M
Interdisciplinary Research Training in Otolaryngology and Communication SciencesT32DC014435 · NIDCD · MEDICAL UNIVERSITY OF SOUTH CAROLINA · PI DUBNO, JUDY R · 2015 to 2024
$2.9M
NIDCD NIH HHS P50 DC014664NIDCD NIH HHS T32 DC0014435NIDCD NIH HHS T32 DC014435NIGMS NIH HHS P20 GM109040
6 · The paper itself

Abstract

Agrammatism in aphasia is not a homogeneous syndrome, but a characterization of a nonuniform set of language behaviors in which grammatical markers and complex syntactic structures are omitted, simplified, or misinterpreted. In a sample of 71 left-hemisphere stroke survivors, syntactic processing was quantified with the Northwestern Assessment of Verbs and Sentences (NAVS). Classification analyses were used to assess the relation between NAVS performance and morphosyntactically reduced speech in picture descriptions. Voxel-based and connectivity-based lesion-symptom mapping were applied to investigate neural correlates of impaired syntactic processing. Despite a nonrandom correspondence between NAVS performance and morphosyntactic production deficits, there was variation in individual patterns of syntactic processing. Morphosyntactically reduced production was predicted by lesions to left-hemisphere inferior frontal cortex. Impaired verb argument structure production was predicted by damage to left-hemisphere posterior superior temporal and angular gyrus, as well as to a ventral pathway between temporal and frontal cortex. Damage to this pathway was also predictive of impaired sentence comprehension and production, particularly of noncanonical sentences. Although agrammatic speech production is primarily predicted by lesions to inferior frontal cortex, other aspects of syntactic processing rely rather on regional integrity in temporoparietal cortex and the ventral stream.

Indexed as

AdultAgedAged, 80 and overAphasiaBrain MappingDiscriminant AnalysisFemaleFrontal LobeHumansMagnetic Resonance ImagingMaleMiddle AgedNerve NetPhotic Stimulationagrammatismaphasiaconnectomelesion-symptom mappingmagnetic resonance imagingsyntax

Identifiers

PMID30666767
PMCPMC6445708
OpenAlexW2912682174

What OpenQuestion holds

Textmetadata
LicenceTDM
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.