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Article

Verbal but not performance IQ is highly correlated to externalizing behavior in boys with ADHD carrying both DRD4 and DAT1 risk genotypes.

Progress in neuro-psychopharmacology & biological psychiatry - 31 Aug 2009

Kebir Oussama, Grizenko Natalie, Sengupta Sarojini, Joober Ridha

Abstract excerpt

OBJECTIVE: Attention-deficit/hyperactivity disorder (ADHD) is often associated with reduced IQ and high levels of externalizing behavior (EB). This study tested if DRD4 7-repeat allele and DAT1 10-repeat allele homozygosity interact in modulating correlations between IQ and EB in affected boys. M...

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Source

Identifiers

PMID: 19409950
DOI: 10.1016/j.pnpbp.2009.04.019

Genes

DRD4

Provenance

PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 4 Sept 2026. Prepared record publication-19409950-2026-09-04.2. Manifest publication-graph-cohort-2026-09-04.2.

Source receipt: PubMed via Helena Literature Corpus, retrieved 4 Sept 2026.

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