For a number of years, clinicians and researchers have recognized the existence of a subgrouping of children who exhibit chronic and pervasive signs of inattention, impulsivity, and physical restlessness, as well as deficiencies in rule-governed behavior, which deviate significantly from age and gender expectations (Barkley; 1981; Ross & Ross, 1982; Wender, 1971). Since first being identified b...

It is unclear whether attention deficit hyperactive disorder (ADHD) is a hypodopaminergic or hyperdopaminergic condition. Different sets of data suggest either hyperactive or hypoactive dopamine system. Since indirect methods used in earlier studies have arrived at contradictory conclusions, we directly measured the tonic and phasic release of dopamine in ADHD volunteers. The tonic release in A...

OBJECTIVE Attention deficit hyperactivity disorder (ADHD) is a common, complex and highly heritable disorder, characterised by inattentive, impulsive and overactive behaviour. Evidence for the heritability of ADHD measures in twin population samples has come from the analysis of total scores that combine inattentive and hyperactive-impulsive symptoms subscales. This study investigated, in a com...

Objectives: This study investigates the impact of neurofeedback on perceptual-motor skills of 5 to 12 years old children with Attention Deficit Hyperactive Disorder (ADHD). Methods: In this clinical study, 40 children between the ages of 5-12 years, who were patients of the Tavanesh Clinic and diagnosed with ADHD, were randomly chosen and divided into two groups of control and t...

OBJECTIVE To explore the attention characteristics of children with different clinical subtypes of attention deficit hyperactivity disorder (ADHD) and to provide a basis for clinical intervention. METHODS A total of 345 children diagnosed with ADHD were selected and the subtypes were identified. Attention assessment was performed by the intermediate visual and auditory continuous performance ...

Title of Thesis: Neurocognitive Features of Attention Deficit Hyperactivity Disorder in a Non-clinical Adult Sample Su-Jong Kim, Master of Science, 2004 Thesis directed by: Wendy A. Law, Ph.D., Associate Professor Department of Medical and Clinical Psychology Cognitive difficulties are frequently documented in clinical Attention Deficit Hyperactivity Disorder (ADHD) samples. Whether these cogni...

OBJECTIVE Oxidative metabolism is impaired in several medical conditions including psychiatric disorders, and this imbalance may be involved in the etiology of these diseases. The present study evaluated oxidative balance in pediatric and adolescent patients with attention deficit hyperactivity disorder (ADHD). METHODS The study included 48 children and adolescents (34 male, 14 female) with A...

BACKGROUND Autism spectrum disorder (ASD), tic disorder (TD), and hyperkinetic syndrome of childhood (attention deficit disorder [ADD]/attention deficit hyperactivity disorder [ADHD]) are disorders recently defined as abnormal connectivity spectrum disorders (ACSDs) because they show a similar pattern of abnormal brain connectivity. This study examines whether these disorders are associated wit...

To assess the effects of postnatal parental smoking on subsequent parent and teacher ratings of DSM-IV attention deficit hyperactivity disorder (ADHD) symptoms and oppositional behaviors in children diagnosed with ADHD and their siblings. Children between 5 and 12 years of age with ADHD and their siblings were included. DSM-IV ADHD symptom subscales (Inattentive and hyperactive-impulsive), and ...

Auditory processing disorder (APD) and attention-deficit hyperactivity disorder (ADHD) present overlapping symptomatology. Previous research has demonstrated that professionals use different behavioral descriptors to characterize APD and ADHD combined and predominantly hyperactive-impulsive subtypes, which present with hyperactivity, impulsivity, and inattention. The present study extends this ...