To start off with, it may be helpful to conceptualize attention disorders in three aspects: sustained, divided, and alternating. However, medical science first documented children showing signs of inattentiveness, impulsivity, and hyperactivity since 1902. Since then, this disorder has been given numerous names, including minimal brain dysfunction, hyperkinetic reaction of childhood, and attention deficit disorder with or without hyperactivity. Now the Diagnostic and Statistical Manual, fourth edition (DSM-IV), a classification system, renamed the disorder as attention deficit disorder/attention deficit hyperactive disorder, or ADD/ADHD. This name reflects the important characteristics of the disorder such as, inattention, hyperactivity, and impulsivity.
ADD or ADHD affects many areas of the brain which include the frontal lobes, inhibitory mechanisms of the cerebral cortex, the limbic system, and the reticular activating system. The frontal lobes... [continues]
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