Evidence map›Paper›PMID 38000187›Full record

ArticleJournal of psychiatric research2024

Functional and structural connectivity correlates of semantic verbal fluency deficits in first-episode psychosis.

Alfredo L Sklar, Fang-Cheng Yeh, Mark Curtis, Dylan Seebold, Brian A Coffman, Dean F Salisbury

Open access · greenAbstract read
In one paragraph

Article in Journal of psychiatric research, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.7field-weighted citation impact, top 31% 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

3 citing papers in PubMed, 4 citations in OpenAlex.

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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

6 authors at 1 institution in 1 country.

Alfredo L SklarUniversity of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA.
Fang-Cheng YehUniversity of Pittsburgh School of Medicine, Department of Neurological Surgery, Pittsburgh, PA, USA.
Mark CurtisUniversity of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA.
Dylan SeeboldUniversity of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA.
Brian A CoffmanUniversity of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA.
Dean F SalisburyUniversity of Pittsburgh School of Medicine, Department of Psychiatry, Pittsburgh, PA, USA. Electronic address: salisburyd@upmc.edu.
University of Pittsburgh · US

Funding

UNIVERSITY OF PITTSBURGH CLINICAL AND TRANSLATIONAL SCIENCE INSTITUTE: BPCAUL1RR024153 · NCRR · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI REIS, STEVEN E · 2006 to 2011
$73.9M
Auditory Cortex Connectivity in Emerging PsychosisR01MH113533 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SALISBURY, DEAN F · 2017 to 2021
$3.4M
Auditory Attention in First Episode PsychosisR01MH108568 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI SALISBURY, DEAN F · 2016 to 2021
$3.1M
Visual Network Connectivity and Perceptual Modulation in Early PsychosisK23MH127389 · NIMH · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Alfredo Luis Sklar · 2022 to 2026
$941k
NCRR NIH HHS UL1 RR024153NIMH NIH HHS K23 MH127389NIMH NIH HHS R01 MH108568NIMH NIH HHS R01 MH113533
6 · The paper itself

Abstract

introductionSemantic verbal fluency (SVF) impairments are debilitating and present early in the course of psychotic illness. Deficits within frontal, parietal, and temporal brain regions contribute to this deficit, as long-range communication across this functionally integrated network is critical to SVF. This study sought to isolate disruptions in functional and structural connectivity contributing to SVF deficits during first-episode psychosis in the schizophrenia spectrum (FESz).

methodsThirty-three FESz and 34 matched healthy controls (HC) completed the Animal Naming Task to assess SVF. Magnetoencephalography was recorded during an analogous covert SVF task, and phase-locking value (PLV) used to measure functional connectivity between inferior frontal and temporoparietal structures bilaterally. Diffusion imaging was collected to measure fractional anisotropy (FA) of the arcuate fasciculus, the major tract connecting frontal and temporoparietal language areas.

resultsSVF scores were lower among FESz compared to HC. While PLV and FA did not differ between groups overall, FESz exhibited an absence of the left-lateralized nature of both measures observed in HC. Among FESz, larger right-hemisphere PLV was associated with worse SVF performance (ρ = -0.51) and longer DUP (ρ = -0.50). DISCUSSION: In addition to worse SVF, FESz exhibited diminished leftward asymmetry of structural and functional connectivity in fronto-temporoparietal SVF network. The relationship between theta-band hyperconnectivity and poorer performance suggests a disorganized executive network and may reflect dysfunction of frontal cognitive control centers. These findings illustrate an aberrant pattern across the distributed SVF network at disease onset and merit further investigation into development of asymmetrical hemispheric connectivity and its failure among high-risk populations.

Indexed as

Psychotic DisordersSchizophreniaWhite MatterBrainHumansSemanticsConnectivitydiffusion spectral imagingDuration of untreated psychosisFirst-episode psychosisMagnetoencephalographySemantic fluency

Identifiers

PMID38000187
PMCPMC10843642
OpenAlexW4388826884

What OpenQuestion holds

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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.