Summary, in English
ADHD is a common neurodevelopmental/neuropsychiatric disorder affecting about 5 percent of children. About 2-3 percent meet diagnostic criteria in adulthood as well. The core symptoms include inattention with or without hyperactivity/restlessness and impulsivity. The main cognitive deficit involves executive functions, probably related to a weak reward system. Symptoms will affect daily functioning at home, among friends and at school/work. In girls and women particularly, a correct diagnosis of ADHD is often late, or is not at all appropriately considered. Co-existing disorders are common; dyslexia, developmental coordination disorder, emotional lability, conduct disorder, autistic symptoms, obsessive compulsive disorder, depression, bipolar disorder, Tourette syndrome, eating disorder, sleeping disorder, and substance abuse. Extensive research in ADHD has increased knowledge in genetics, neurobiology, neuropsychology, intervention, and treatment. Despite this, many individuals with ADHD are not offered a correct assessment, and accordingly, not given appropriate support and treatment.