Evidence map›Paper›PMID 22640745›Full record

ArticleBehavioral and brain functions : BBF2012

The COMT Val158 allele is associated with impaired delayed-match-to-sample performance in ADHD.

Natasha Matthews, Alasdair Vance, Tarrant D R Cummins, Joseph Wagner, Amanda Connolly, Jacqueline Yamada, Paul J Lockhart, Ajay Panwar, Robyn H Wallace, Mark A Bellgrove

Abstract read
In one paragraph

Article in Behavioral and brain functions : BBF, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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3 · Its place in the literature

Who cites it

11 citing papers in PubMed.

  1. Trial
  2. Article
  3. Proline-rich polypeptides (ColostrininFood science & nutrition · 2023
    Article
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  6. Article
  7. Review
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4 · The record

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5 · Who and what money

Authors and funding

10 authors.

Natasha MatthewsThe University of Queensland, Queensland Brain Institute and School of Psychology, St Lucia, 4072, Brisbane, Australia. natasha.leigh.matthews@gmail.com
Alasdair Vance
Tarrant D R Cummins
Joseph Wagner
Amanda Connolly
Jacqueline Yamada
Paul J Lockhart
Ajay Panwar
Robyn H Wallace
Mark A Bellgrove

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThis study explored the association between three measures of working memory ability and genetic variation in a range of catecholamine genes in a sample of children with ADHD.

methodsOne hundred and eighteen children with ADHD performed three working memory measures taken from the CANTAB battery (Spatial Span, Delayed-match-to-sample, and Spatial Working Memory). Associations between performance on working memory measures and allelic variation in catecholamine genes (including those for the noradrenaline transporter [NET1], the dopamine D4 and D2 receptor genes [DRD4; DRD2], the gene encoding dopamine beta hydroxylase [DBH] and catechol-O-methyl transferase [COMT]) were investigated using regression models that controlled for age, IQ, gender and medication status on the day of test.

resultsSignificant associations were found between performance on the delayed-match-to-sample task and COMT genotype. More specifically, val/val homozygotes produced significantly more errors than did children who carried a least one met allele. There were no further associations between allelic variants and performance across the other working memory tasks.

conclusionsThe working memory measures employed in the present study differed in the degree to which accurate task performance depended upon either the dynamic updating and/or manipulation of items in working memory, as in the spatial span and spatial working memory tasks, or upon the stable maintenance of representations, as in the delay-match-to-sample task. The results are interpreted as evidence of a relationship between tonic dopamine levels associated with the met COMT allele and the maintenance of stable working memory representations required to perform the delayed-match-to-sample-task.

Indexed as

AdolescentAllelesAttention Deficit Disorder with HyperactivityCatechol O-MethyltransferaseChildFemaleGenetic VariationGenotypeHeterozygoteHomozygoteHumansMaleMemory, Short-TermNeuropsychological TestsPattern Recognition, VisualPhenotypeCatechol O-MethyltransferaseValine

Identifiers

PMID22640745
PMCPMC3413539

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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.