Results of behavioral genetic and molecular genetic studies have converged to suggest that
both genetic and nongenetic factors contribute to the development of attention …

Quantitative genetic studies (ie, twin and adoption studies) suggest that genetic influences
contribute substantially to the development of attention deficit hyperactivity disorder (ADHD) …

Attention deficit/hyperactivity disorder (ADHD) is among the most common childhoodonset
psychiatric disorders. The worldwide prevalence of ADHD in children is 8% to 12%, 1 and …

Attention deficit hyperactivity disorder (ADHD) is highly heritable but is likely a complex
disorder involving multiple genes of moderate effect (Smalley [1997: Am J Hum Genet 60 …

Attention deficit hyperactivity disorder (ADHD) is a highly heritable, disruptive, childhood-
onset condition, the aetiology and pathogenesis of which is poorly understood. There have …

Results of behavioral genetic and molecular genetic studies have converged to suggest that
both genetic and nongenetic factors contribute to the development of attention deficit …

The onset of attention-deficit-hyperactivity-disorder (ADHD) in childhood is characterized by
developmentally inappropriate levels of hyperactivity, impulsivity and inattention. A chronic …

Serotonin (5-HT) regulates important biological and psychological processes including
mood, and may be associated with the development of several psychiatric disorders. An …

Over the past 15 years, considerable progress has been made in understanding the etiology
of childhood Attention Deficit Hyperactivity Disorder (ADHD), largely due to the publication of …

Objective: The serotonin transporter gene (SLC6A4) is a strong autism candidate gene
because of its association with anxiety, aggression and attention, and the effectiveness of …