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ADHD
2013-11-13 来源: 类别: 更多范文
ADHD
ADHD is attention deficit disorder accompanied by impassivity and over activity. Medical scientists think ADHD is caused by a chemical problem in the brain. The front part of the brain helps you pay attention, concentrate, organize things, and put breaks on impulsive or unacceptable behavior. Peoples brains with ADHD may not be able to use the brains main signal senders, neurotransmitters, the way it is suppose to. The front part of the brain has very little to do with intelligence, so it is possible to be very smart and still have ADHD.
3-5% of school-age children are affected by ADHD. Hyperactivity is easy to spot, and more boys than girls tend to be hyperactivity. If one person in a family has ADHD, there is a good chance that someone else in the family had or has it too. (Beal 10)
It is best to get evaluated for ADHD as early as possible. In most cases, someone at school, a teacher, counselor, or principal suggest a student be tested for ADHD. The evaluations usually take time and are done in two parts.
First a student takes one or more of the following tests: Intelligence to help evaluate the students
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