DOPAMINE GENES AND INFANT ATTENTION 1 Polymorphisms in Dopamine System Genes are Associated with Individual Differences in 1 Attention in Infancy 2

Abstract

Abstract 1 Knowledge about the functional status of the frontal cortex in infancy is limited. This study 2 investigated the effects of polymorphisms in four dopamine system genes on performance in 3 a task developed to assess such functioning, the Freeze-Frame task, at 9 months of age