Evidence map›Paper›PMID 32803293›Full record

ArticleBrain structure & function2020

Association of γ-aminobutyric acid and glutamate/glutamine in the lateral prefrontal cortex with patterns of intrinsic functional connectivity in adults.

Kai Wang, Harry R Smolker, Mark S Brown, Hannah R Snyder, Benjamin L Hankin, Marie T Banich

Open access · greenAbstract read
In one paragraph

Article in Brain structure & function, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.6field-weighted citation impact, top 36% 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

9 citing papers in PubMed, 12 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 5 institutions in 2 countries.

Kai WangKey Laboratory of Brain, Cognition and Education Sciences, Ministry of Education, China; School of Psychology, Center for Studies of Psychological Application, and Guangdong Key Laboratory of Mental Health and Cognitive Science, South China Normal University, No. 55 West Zhongshan Avenue, Guangzhou, 510631, Guangdong, China. kaiwang@m.scnu.edu.cn.ORCID http://orcid.org/0000-0002-0392-9275
Harry R SmolkerInstitute of Cognitive Science, University of Colorado Boulder, 344 UCB, Boulder, CO, 80309-0344, USA.
Mark S BrownDepartment of Radiology, University of Colorado Anschutz Medical Campus, 12401 E 17th Place, Aurora, CO, 80045, USA.
Hannah R SnyderDepartment of Psychology, Brandeis University, 415 South Street, Waltham, MA, 02453, USA.
Benjamin L HankinPsychology Department, University of Illinois-Urbana Champaign, 603 E. Daniel Street, Champaign, IL, 61820, USA.
Marie T BanichInstitute of Cognitive Science, University of Colorado Boulder, 344 UCB, Boulder, CO, 80309-0344, USA. Marie.Banich@colorado.edu.
University of Colorado Boulder · USBrandeis University · USMinistry of Education of the People's Republic of China · CNUniversity of Colorado Anschutz Medical Campus · USUniversity of Illinois Urbana-Champaign · US

Funding

Prefrontal Mechanisms of Selection: Disrupted in Internalizing Psychopathology?R01MH105501 · NIMH · UNIVERSITY OF COLORADO · PI BANICH, MARIE T, HANKIN, BENJAMIN L · 2015 to 2019
$2.8M
NIMH NIH HHS R01 105501NIMH NIH HHS R01 MH105501
6 · The paper itself

Abstract

This study examined how levels of neurotransmitters in the lateral prefrontal cortex (LPFC), a region underlying higher-order cognition, are related to the brain's intrinsic functional organization. Using magnetic resonance spectroscopy (MRS), GABA+ and Glx (glutamate + glutamine) levels in the left dorsal (DLPFC) and left ventral (VLPFC) lateral prefrontal cortex were obtained in a sample of 64 female adults (mean age = 48.5). We measured intrinsic connectivity via resting-state fMRI in three ways: (a) via seed-based connectivity for each of the two spectroscopy voxels; (b) via the spatial configurations of 17 intrinsic networks defined by a well-known template; and (c) via examination of the temporal inter-relationships between these intrinsic networks. The results showed that different neurotransmitter indexes (Glx-specific, GABA+-specific, Glx-GABA+ average and Glx-GABA+ ratio) were associated with distinct patterns of intrinsic connectivity. Neurotransmitter levels in the left LPFC are mainly associated with connectivity of right hemisphere prefrontal (e.g., DLPFC) or striatal (e.g., putamen) regions, two areas of the brain connected to LPFC via large white matter tracts. While the directions of these associations were mixed, in most cases, higher Glx levels are related to reduced connectivity. Prefrontal neurotransmitter levels are also associated with the degree of connectivity between non-prefrontal regions. These results suggest robust relationships between the brain's intrinsic functional organization and local neurotransmitters in the LPFC which may be constrained by white matter neuroanatomy.

Indexed as

AdultBrain MappingFemalegamma-Aminobutyric AcidGlutamic AcidGlutamineHumansMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMiddle AgedNerve NetPrefrontal Cortexgamma-Aminobutyric AcidGlutamic AcidGlutamineConnectivityfMRIGABA+GlutamateLateral prefrontalMRS

Identifiers

PMID32803293
PMCPMC8765125
OpenAlexW3049494506

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.