Attention deficit hyperactivity disorder and oppositional behaviours frequently co-occur, We aimed to study the etiology of this overlap in a general population-based twin sample, assessing the symptom domains of hyperactivity-impulsivity and inattentiveness separately for their overlap with oppositionality. We further aimed to investigate whether rater bias may contribute to the overlap in pre...

OBJECTIVE To examine early adolescent outcome of attention-deficit hyperactivity disorder in local Chinese children. DESIGN Cohort study. SETTING A university teaching hospital in Hong Kong. PARTICIPANTS A cohort of Chinese children with attention-deficit hyperactivity disorder diagnosed according to the Diagnostic and Statistical Manual of Mental Disorders (4th edition) who attended a da...

Since the first reports of neurofeedback treatment in Attention Deficit Hyperactivity Disorder (ADHD) in 1976, many studies have investigated the effects of neurofeedback on different symptoms of ADHD such as inattention, impulsivity and hyperactivity. This technique is also used by many practitioners, but the question as to the evidence-based level of this treatment is still unclear. In this s...

OBJECTIVE A common complaint for children with pervasive developmental disorder (PDD) is hyperactivity. The purpose of this pilot study was to gather preliminary information on the efficacy of guanfacine in children with PDD and hyperactivity. METHODS Children with PDD accompanied by hyperactivity entered the open-label trial if there was a recent history of failed treatment with methylphenid...

Tinnitus is often related to hearing loss, but how hearing loss could lead to tinnitus has remained unclear. Animal studies show that the occurrence of tinnitus is correlated to increased spontaneous firing rates of central auditory neurons, but mechanisms that give rise to such hyperactivity have not been identified yet. Here we present a computational model that reproduces tinnitus-related hy...

Attention-deficit hyperactivity disorder (ADHD) is a common neurobehavioral disorder, and its symptoms are hyperactivity and deficits in learning and memory. Physical exercise increases dopamine synthesis and neuronal activity in various brain regions. In the present study, we investigate the duration-dependence of the treadmill exercise on hyperactivity in relation with dopamine expression in ...

Introduction Attention Deficit Hyperactivity Disorder (ADHD) affects about 9.4% (6.4 million) children in the United States. Pharmacological treatment, including stimulants, is a known therapy for ADHD. However, its possible subtherapeutic effectiveness, residual symptoms, and adverse effects have prompted us to explore current evidence of Yoga as an add-on that has shown synergistic recent stu...