Cited by 381Neurotransmitter Receptor Influence on BehaviorNeural and Behavioral Psychology StudiesCognitive Abilities and Testing

Genetic and neurochemical modulation of prefrontal cognitive functions in children

Diamond, Adele, Briand, Lisa, Fossella, John, Gehlbach, Lorrie·2004·American Journal of Psychiatry

Abstract

OBJECTIVE: The catechol O-methyltransferase (COMT) gene affects how long dopamine acts in the prefrontal cortex. The Methionine polymorphism, which results in a slower breakdown of prefrontal dopamine, is associated with better adult prefrontal cortex function. The authors investigated the relation between the COMT gene polymorphism and cognitive performance in children. METHOD: Children were tested on cognitive tasks that depend on the dorsolateral prefrontal cortex and seem to be sensitive to the level of dopamine there (dots-mixed task), depend on that neural region but appear insensitive to its dopamine content (self-ordered pointing), and depend on other neural systems (recall memory and mental rotation). After data collection, cheek swabs were obtained from all children. DNA was extracted and genotyped for the COMT gene with polymerase chain reaction. RESULTS: Children who were homozygous for the Methionine polymorphism performed significantly better on the dots-mixed task but not on others. CONCLUSIONS: The findings provide an existence proof that genotypic differences can relate to differences in cognitive performance in typically developing children. The authors achieved a level of specificity never previously attempted; the COMT polymorphism was found to be differentially related to performance on tasks linked to the same prefrontal region by whether cognitive requirements of the tasks were sensitive to the level of dopamine found. These results challenge accepted notions that since dopamine is important for some cognitive functions dependent on the prefrontal cortex, it is important for all. The differential sensitivity of distinct cognitive abilities to specific neurotransmitters may make possible targeted pharmacological interventions.

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Crossref · 10.1176/appi.ajp.161.1.125

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Authors
Diamond, A., Briand, L., Fossella, J., & Gehlbach, L.
Affiliations
University of Massachusetts Chan Medical School (US)
Venue
American Journal of Psychiatry
Published
2004-01-01
Volume
161
Issue
1
Pages
125-132
ISSN
  • 0002-953X (ISSN-L)
  • 1535-7228
OpenAlex
W2119744642
Cited by
381
References
62
Citations by year
2026: 1 · 2025: 4 · 2024: 3 · 2023: 2 · 2022: 5 · 2021: 13 · 2020: 6 · 2019: 7 · 2018: 14 · 2017: 9 · 2016: 17 · 2015: 12 · 2014: 18 · 2013: 27 · 2012: 23
FWCI
8.88
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • eScholarship@UMassChan (submittedVersion)
Funders
Eunice Kennedy Shriver National Institute of Child Health and Human Development (HD-35453, R01HD035453)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural and Behavioral Psychology Studies
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Cognitive Abilities and Testing
Keywords
catechol-O-methyltransferase, COMT gene, dopamine, prefrontal cortex, dorsolateral prefrontal cortex, cognitive performance, children, genetic polymorphism, memory retrieval, mental rotation, neurotransmitter sensitivity, pharmacogenetics
MeSH terms
Adolescent, Catechol O-Methyltransferase, Child, Codon, Cognition, DNA, Female, Genotype, Humans, Male, Memory, Polymorphism, Genetic, Saliva, Temporal Lobe, Gene Expression, Polymerase Chain Reaction, Prefrontal Cortex

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