Attention deficit hyperactivity disorder
Biederman, Joseph Pediatric Psychopharmacology Unit, Massachusetts General Hospital, Boston, Massachusetts.
Faraone, Stephen V. Department of Psychiatry, State University of New York Upstate Medical University, Syracuse, New York.
Last reviewed:April 2021
Show previous versions
- Clinical features
- Associated disorders
- Natural history
- Related Primary Literature
- Additional Reading
A common psychiatric disorder (especially in children) characterized by attentional difficulties, impulsivity, and hyperactivity. Attention deficit hyperactivity disorder (ADHD) is a mental disorder marked by an individual's inability to pay attention or to focus on tasks, as well as acting impulsively or being extremely active (hyperactive). The condition typically takes shape in early childhood, and the signs and symptoms of ADHD often lead to functioning or developmental deficiencies (Fig. 1). In Europe, ADHD is known as hyperkinetic disorder. Earlier names for ADHD include attention deficit disorder, minimal brain dysfunction, minimal brain damage, hyperactivity, hyperkinesis, and hyperactive child syndrome. Over time, these names were modified as a result of their implications about etiology and core symptoms: Minimal brain dysfunction seemed to imply that children with this disorder were brain-damaged, whereas hyperactivity and its synonyms named a feature seen in many (but not all) of these children. See also: Developmental psychology; Mental disorders
The content above is only an excerpt.
for your institution. Subscribe
To learn more about subscribing to AccessScience, or to request a no-risk trial of this award-winning scientific reference for your institution, fill in your information and a member of our Sales Team will contact you as soon as possible.
to your librarian. Recommend
Let your librarian know about the award-winning gateway to the most trustworthy and accurate scientific information.
AccessScience provides the most accurate and trustworthy scientific information available.
Recognized as an award-winning gateway to scientific knowledge, AccessScience is an amazing online resource that contains high-quality reference material written specifically for students. Contributors include more than 10,000 highly qualified scientists and 46 Nobel Prize winners.
MORE THAN 8700 articles covering all major scientific disciplines and encompassing the McGraw-Hill Encyclopedia of Science & Technology and McGraw-Hill Yearbook of Science & Technology
115,000-PLUS definitions from the McGraw-Hill Dictionary of Scientific and Technical Terms
3000 biographies of notable scientific figures
MORE THAN 19,000 downloadable images and animations illustrating key topics
ENGAGING VIDEOS highlighting the life and work of award-winning scientists
SUGGESTIONS FOR FURTHER STUDY and additional readings to guide students to deeper understanding and research
LINKS TO CITABLE LITERATURE help students expand their knowledge using primary sources of information