PURPOSE Attention-deficit/hyperactivity disorder (ADHD) has been shown to be related to a higher risk of developing psychiatric problems such as depressive disorders, substance use disorder, and impulsivity. Adults who have comorbid ADHD and alcohol use disorder (AUD) are at greater risk of negative outcomes. Thus, it is important to evaluate the relationship of ADHD symptoms and the severity o...

AIM The aim of the study was to test whether children with a diagnosis of ADHD at the age of 7-16 years have deficits in visual-spatial, visual memory, planning, and organisation of the visual-motor functions. METHODS The study included 186 unrelated patients aged 7-16 years diagnosed with ADHD. The control group consisted of 156 healthy individuals aged 7-16 years. The methods applied were t...

We previously described a co-twin control design using questionnaire data on monozygotic twins discordant and concordant for developmental coordination disorder (DCD) and attention deficit hyperactivity disorder (ADHD). Our results suggested that DCD and developmental ADHD had different causal pathways, and that second-born twins were at higher risk for oxygen perfusion problems than first-born...

beneficial effects of stimulants on core symptoms of attention deficit hyperactivity disorder (adhd) have been reported in several studies. behavioral interventions have also been proposed as empirically supported interventions for adhd. although cognitive-behavioral therapies (cbt) have been criticized for the lack of evidence-based data, some studies have indicated the positive effects of cbt...

conclusions the results of the study show no significant association between norepinephrine transporter polymorphism scl6a2 and adhd. results the percentages of adhd subtypes for combined, inattentive, and hyperactive/impulsive were 72.2%, 17.2%, and 11.9%, respectively. there was no significant association between norepinephrine transporter polymorphism and adhd (p = 0.81). moreover, no signif...

Despite considerable research, the validity of attention-deficit/hyperactivity disorder (ADHD) remains controversial. This paper summarizes the results of a comprehensive review of the internal and external validity of ADHD as defined in the fourth edition of the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV). Results indicate that for most individuals DSM-IV ADHD is a valid dis...

Attention-deficit hyperactivity disorder (ADHD) is a common childhood disorder which occurs more often in twins than singletons. This article focuses on the psychosocial consequences of having a co-twin with ADHD. Specifically, the level of anxiety (generalized and separation) in non-ADHD children who have a co-twin with ADHD is examined using data from the Australian Twin ADHD Project (ATAP). ...

OBJECTIVE Attention-deficit/hyperactivity disorder (ADHD) is the most common neurobehavioral disorder of childhood. Children with ADHD may experience significant functional problems. Our objective was to examine the prevalence of ADHD and its subtypes in Iran. METHODS Pubmed, ISI web of science, psychinfo, Iranpsych, Iranmedex, Irandoc were searched. Irandoc, Iranmedex and Iranpsych are Irani...

BACKGROUND To investigate the attention-deficit/hyperactivity disorder (ADHD) status among preschool-aged children in Guiyu, an electronic waste (e-waste) recycling town in Guangdong, China. METHODS Two hundred and forty-three parents were surveyed regarding ADHD behaviors in their children (aged 3-7 years) based solely on the DSM-IV criteria. The peripheral blood samples were taken from thes...