Decades of research show that genes play an vital role in the etiology of attention deficit
hyperactivity disorder (ADHD) and its comorbidity with other disorders. Family, twin, and …

Executive dysfunction has been shown to be a promising endophenotype in
neurodevelopmental disorders such as autism spectrum disorder (ASD) and attention …

Symptoms of attention deficit hyperactivity disorder (ADHD) and autistic spectrum disorder
(ASD) often co-occur. The DSM-IV had specified that an ASD diagnosis is an exclusion …

Autism spectrum disorder (autism) is a heterogeneous group of neurodevelopmental
conditions characterized by early childhood-onset impairments in communication and social …

Researchers continue to pursue a better understanding of the symptoms, comorbidities, and
causes of autism spectrum disorders. In this article we review more than 30 twin studies of …

Objective: Autism spectrum disorders are considered to be among the most heritable mental
disorders, a notion based on surprisingly sparse data from small clinical studies. Population …

Autism spectrum disorders (ASD) and attention-deficit/hyperactivity disorder (ADHD)
frequently co-occur. The presence of a genetic link between ASD and ADHD symptoms is …

Objective To investigate, by systematically reviewing the literature, whether the attention-
deficit/hyperactivity disorder (ADHD) polygenic risk score (PRS) associates with ADHD and …

Restricted and repetitive behaviors (RRBs) are a core symptom of autism spectrum
disorders (ASD). There has been an increased research emphasis on repetitive behaviors; …

Research suggests that offspring of mothers who experience high levels of stress during
pregnancy are more likely to have problems in neurobehavioral development. There is …