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Attention deficit hyperactivity disorder (ADHD) [1] is a neurodevelopmental disorder characterized by symptoms of inattention, hyperactivity, impulsivity and emotional dysregulation that are excessive and pervasive, impairing in multiple contexts, and developmentally-inappropriate. [9]
Symptoms of ADHD include inattentiveness, impulsiveness, and hyperactivity. Many of the behaviors that are associated with ADHD include poor control over actions resulting in disruptive behavior and academic problems. Another area that is affected by these disorders is the social arena for the person with the disorder.
After adjusting for other factors that might influence dementia risk—like the presence of cardiovascular disease—researchers found that seniors with ADHD were at a 2.77-fold increased risk of ...
Executive dysfunction is the mechanism underlying ADHD paralysis, [2] and in a broader context, it can encompass other cognitive difficulties like planning, organizing, initiating tasks and regulating emotions. It is a core characteristic of ADHD and can elucidate numerous other recognized symptoms. [3]
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The 7 repeat variant of dopamine receptor D4 (DRD4–7R) causes increased inhibitory effects induced by dopamine and is associated with ADHD. The DRD4 receptor is a G protein-coupled receptor that inhibits adenylyl cyclase. The DRD4–7R mutation results in a wide range of behavioural phenotypes, including ADHD symptoms reflecting split ...
Unlike ADHD, which is the result of deficient executive functioning and self-regulation, [4] [5] [6] CDS presents with problems in arousal, maladaptive daydreaming, and oriented or selective attention (distinguishing what is important from unimportant in information that has to be processed rapidly), as opposed to poor persistence or sustained ...
Disorders usually first diagnosed in infancy, childhood or adolescence. *Disorders such as ADHD and epilepsy have also been referred to as developmental disorders and developmental disabilities. ADHD: Delirium, dementia, and amnesia and other cognitive disorders: Alzheimer's disease: Mental disorders due to a general medical condition: AIDS ...