Background: We reviewed systematically the results of genetic studies investigating
associations between putative susceptibility genes for attention-deficit hyperactivity disorder …

Background Attention‐deficit/hyperactivity disorder (ADHD) frequently co‐occurs with other
psychiatric disorders. Twin studies have established that these co‐occurrences are in part …

As a relatively large body of research has been published up to now, it may be informative to
explore whether the use of endophenotypes has produced consistent findings in attention …

BACKGROUND: The adoption of neuropsychological tests as endophenotypic measures
can provide an increased sensitivity to specific dimensions of attention-deficit/hyperactivity …

Early identification of attention-deficit/hyperactivity disorder (ADHD) is critical for mitigating
the many negative functional outcomes associated with its diagnosis. Because of the strong …

Attention deficit/hyperactivity disorder (ADHD) in children is a neurobehavioral disorder
characterized by inattention, hyperactivity, and/or impulsivity. The biochemical abnormalities …

Since neurocognitive performance is a possible endophenotype for Attention Deficit
Hyperactivity Disorder (ADHD) we explored the relationship between four genetic …

Objective The developmental trajectory of attention-deficit hyperactivity disorder (ADHD) is
variable. Utilizing a longitudinally assessed sample, we investigated the contribution of …

Several candidate gene polymorphisms have been implicated in attention deficit
hyperactivity disorder (ADHD), including DAT1 40bp VNTR, DRD4 7+, and DBH TaqI A2 …

Objective Twin studies and genome-wide complex trait analysis (GCTA) are not in
agreement regarding heritability estimates for behavioral traits in children from the general …