For many years, attention-deficit hyperactivity disorder (ADHD) was thought to be a
childhood-onset disorder that has a limited effect on adult psychopathology. However, the …

Background Early‐life institutional deprivation is associated with attention‐
deficit/hyperactivity disorder (ADHD) later in childhood and adolescence. In this article, we …

Background: It has been suggested that birth by caesarean section (CS) may affect
psychological development through changes in microbiota or stress response. We assessed …

Objective A controversial issue is whether self-report of symptoms and impairment is
sufficient for diagnosis of attention-deficit/hyperactivity disorder (ADHD) in adolescents and …

Aggressiveness is a behavioral trait that has the potential to be harmful to individuals and
society. With an estimated heritability of about 40%, genetics is important in its development …

Background Children and adolescents with autism spectrum disorder (ASD) or attention-
deficit/hyperactivity disorder (ADHD) are more likely to be surrounded by different risk …

Objective We evaluated whether the association between Adult Attention-
Deficit/Hyperactivity Disorder (ADHD) and Seasonal Affective Disorder (SAD) was mediated …

BackgroundAttention-deficit/hyperactivity disorder (ADHD) predisposes to drug abuse (DA)
and twin studies suggest shared genetic effects. We here seek to determine, using adoption …

Family and twin studies have identified endophenotypes that capture familial and genetic
risk in attention‐deficit/hyperactivity disorder (ADHD), but it remains unclear if they lie on the …

Children with attention‐deficit/hyperactivity disorder (ADHD) are at increased risk of
problematic alcohol and other substance use in adolescence. This study used data from an …