Evidence map›Paper›PMID 23383291›Full record

ArticlePloS one2013

COMT and ANKK1-Taq-Ia genetic polymorphisms influence visual working memory.

Marian E Berryhill, Martin Wiener, Jaclyn A Stephens, Falk W Lohoff, H Branch Coslett

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
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

21 citing papers in PubMed, 50 citations in OpenAlex.

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  12. DRD2: Bridging the Genome and Ingestive Behavior.Trends in cognitive sciences · 2017
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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

5 authors at 2 institutions in 1 country.

Marian E BerryhillMemory and Brain Laboratory, Department of Psychology, University of Nevada, Reno, Nevada, United States of America. mberryhill@unr.edu
Martin Wiener
Jaclyn A Stephens
Falk W Lohoff
H Branch Coslett
University of Pennsylvania · USUniversity of Nevada, Reno · US

Funding

Virtual Reality and Augmented Reality CoreP20GM103650 · NIGMS · UNIVERSITY OF NEVADA RENO · PI WEBSTER, MICHAEL A · 2012 to 2022
$20.9M
Investigating Working Memory Encoding using Frequency-Tagging of Evoked ResponseR15EY022775 · NEI · UNIVERSITY OF NEVADA RENO · PI BERRYHILL, MARIAN E, CAPLOVITZ, GIDEON PAUL · 2012 to 2012
$407k
NEI NIH HHS R15 EY022775NEI NIH HHS R15EY022775NIGMS NIH HHS 1P20GM103650-01NIGMS NIH HHS P20 GM103650
6 · The paper itself

Abstract

Complex cognitive tasks such as visual working memory (WM) involve networks of interacting brain regions. Several neurotransmitters, including an appropriate dopamine concentration, are important for WM performance. A number of gene polymorphisms are associated with individual differences in cognitive task performance. COMT, for example, encodes catechol-o-methyl transferase the enzyme primarily responsible for catabolizing dopamine in the prefrontal cortex. Striatal dopamine function, linked with cognitive tasks as well as habit learning, is influenced by the Taq-Ia polymorphism of the DRD2/ANKK1 gene complex; this gene influences the density of dopamine receptors in the striatum. Here, we investigated the effects of these polymorphisms on a WM task requiring the maintenance of 4 or 6 items over delay durations of 1 or 5 seconds. We explored main effects and interactions between the COMT and DRD2/ANKK1-Taq-Ia polymorphisms on WM performance. Participants were genotyped for COMT (Val(158)Met) and DRD2/ANKK1-Taq-Ia (A1+, A1-) polymorphisms. There was a significant main effect of both polymorphisms. Participants' WM reaction times slowed with increased Val loading such that the Val/Val homozygotes made the slowest responses and the Met/Met homozygotes were the fastest. Similarly, WM reaction times were slower and more variable for the DRD2/ANKK1-Taq-Ia A1+ group than the A1- group. The main effect of COMT was only apparent in the DRD2/ANKK1-Taq-Ia A1- group. These findings link WM performance with slower dopaminergic metabolism in the prefrontal cortex as well as a greater density of dopamine receptors in the striatum.

Indexed as

Polymorphism, GeneticAdolescentAdultBrainCatechol O-MethyltransferaseCognitionDopamineFemaleGenotypeHumansMaleMemory, Short-TermMiddle AgedPhotic StimulationProtein Serine-Threonine KinasesReaction TimeANKK1 protein, humanCatechol O-MethyltransferaseDopamineProtein Serine-Threonine Kinases

Identifiers

PMID23383291
PMCPMC3561341
OpenAlexW1993177597

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LicenceCC BY
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Registered trials

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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.