Testing DAT1 and DRD4 Genes in Attention Deficit Hyperactivity Disorder Using a Wide Spectrum of Neurocognitive Batteries

Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental condition characterized by marked heterogeneity in cognitive functioning. This study aimed to examine the associations between polymorphisms in the DAT1 and DRD4 genes and neurocognitive performance in children and adolescents with ADHD. A total of 336 participants aged 6-18 years (244 with ADHD and 92 healthy controls) were included. Variable number tandem repeat (VNTR) polymorphisms in the 3′ UTR of DAT1 and exon 3 of DRD4…

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