Dopamine transporter genotype predicts attentional asymmetry in healthy adults

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Abstract

A number of recent studies suggest that DNA variation in the dopamine transporter gene (DAT1) influences spatial attention asymmetry in clinical populations such as ADHD, but confirmation in non-clinical samples is required. Since non-spatial factors such as attentional load have been shown to influence spatial biases in clinical conditions, here we sought to determine whether any association between DAT1 genotype and spatial bias might be moderated by non-spatial attentional load. Healthy adults were asked to react to sudden onset peripheral targets while demand on non-spatial attention was manipulated via a central task. Participants were genotyped for a DAT1 variable number of tandem repeat (VNTR) polymorphism
Original languageEnglish
Pages (from-to)2823 - 2829
Number of pages7
JournalNeuropsychologia
Volume50
Issue number12
DOIs
Publication statusPublished - 2012

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