Evidence map›Paper›PMID 34244340›Full record

ArticleeNeuro

Language Tasks and the Network Control Role of the Left Inferior Frontal Gyrus.

John D Medaglia, Denise Y Harvey, Apoorva S Kelkar, Jared P Zimmerman, Joely A Mass, Danielle S Bassett, Roy H Hamilton

Open access · goldAbstract read
In one paragraph

Article in eNeuro. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed, 2 pooled it
1.7field-weighted citation impact, top 17% 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

15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 19 citations in OpenAlex.

  1. Pooled it
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  5. Lesion-symptom mapping reveals differential relationships between language and precise versus approximate numeracy.Cortex; a journal devoted to the study of the nervous system and behavior · 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 4 institutions in 1 country.

John D MedagliaDepartment of Psychology, Drexel University, Philadelphia, PA 19104 johnmedaglia@gmail.com.
Denise Y HarveyDepartment of Neurology, Drexel University, Philadelphia, PA 19104.ORCID 0000-0002-4312-9512
Apoorva S KelkarDepartment of Psychology, Drexel University, Philadelphia, PA 19104.
Jared P ZimmermanDepartment of Neurology, University of Pennsylvania, Philadelphia, PA 19104.ORCID 0000-0003-3423-7711
Joely A MassSidney Kimmel Medical College, Thomas Jefferson University, Philadelphia, PA 19107.
Danielle S BassettDepartment of Neurology, University of Pennsylvania, Philadelphia, PA 19104.
Roy H HamiltonDepartment of Neurology, University of Pennsylvania, Philadelphia, PA 19104.
California University of Pennsylvania · USDrexel University · USSanta Fe Institute · USThomas Jefferson University · US

Funding

Network Control and Functional Context: Mechanisms for TMS ResponseRF1MH116920 · NIMH · UNIVERSITY OF PENNSYLVANIA · PI BASSETT, DANIELLE SMITH, OATHES, DESMOND · 2018 to 2018
$2.8M
Postdoctoral Training in Translational Neurorehabilitation ResearchT32HD071844 · NICHD · ALBERT EINSTEIN HEALTHCARE NETWORK · PI WHYTE, JOHN · 2013 to 2022
$2.2M
Dynamic Network Neuroscience and Control Theory: Toward Interventions for Cognitive Control DysfunctionDP5OD021352 · OD · UNIVERSITY OF PENNSYLVANIA · PI MEDAGLIA, JOHN · 2015 to 2019
$2.0M
NICHD NIH HHS T32 HD071844NIH HHS DP5 OD021352NIMH NIH HHS RF1 MH116920
6 · The paper itself

Abstract

Recent work has combined cognitive neuroscience and control theory to make predictions about cognitive control functions. Here, we test a link between whole-brain theories of semantics and the role of the left inferior frontal gyrus (LIFG) in controlled language performance using network control theory (NCT), a branch of systems engineering. Specifically, we examined whether two properties of node controllability, boundary and modal controllability, were linked to semantic selection and retrieval on sentence completion and verb generation tasks. We tested whether the controllability of the left IFG moderated language selection and retrieval costs and the effects of continuous θ burst stimulation (cTBS), an inhibitory form of transcranial magnetic stimulation (TMS) on behavior in 41 human subjects (25 active, 16 sham). We predicted that boundary controllability, a measure of the theoretical ability of a node to integrate and segregate brain networks, would be linked to word selection in the contextually-rich sentence completion task. In contrast, we expected that modal controllability, a measure of the theoretical ability of a node to drive the brain into specifically hard-to-reach states, would be linked to retrieval on the low-context verb generation task. Boundary controllability was linked to selection and to the ability of TMS to reduce response latencies on the sentence completion task. In contrast, modal controllability was not linked to performance on the tasks or TMS effects. Overall, our results suggest a link between the network integrating role of the LIFG and selection and the overall semantic demands of sentence completion.

Indexed as

Brain MappingLanguageHumansMagnetic Resonance ImagingPrefrontal CortexSemanticsTranscranial Magnetic Stimulation

Identifiers

PMID34244340
PMCPMC8431826
OpenAlexW3182897135

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.