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ADHD (For)
1. What is ADHD? Attention deficit-hyperactivity disorder is one of the most common neurobehavioral disorders that affects 3-7 percent of all American children. It is characterized by inattention, hyperactivity, and impulsivity. According to the DSM-IV, symptoms must be present for at least 6 months
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6. According to Dr. Russell A. Barkley, a Research Professor in the Department of Psychiatry at the State University of New York Upstate Medical University, and one of the leading experts in ADHD, biological factors are a strong contributor to its occurrence. Genetics
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9. Dizygotic twins, on the other hand, were found to have about the same chance as two, normal siblings - around 30 percent Genetics: Twin Studies
12. In a separate study at the NIMH, researchers demonstrated a link between a person's ability to pay attention and the level of activity in the brain. Subjects were asked to learn a list of words. As they did, scientists used a PET scan (positron emission tomography) to take a look at the brain working. The researchers measured the level of glucose used by the areas of the brain that inhibit impulses and control attention. The investigators found big differences between people who have ADHD and those who didn‘t. For people with ADHD, the brain areas that control attention used less glucose, indicating that they were less active and thus cause inattention. Neurobiology - Pet Scans
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