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ADHD and the Human Brain

Updated on July 14, 2012

The symptoms of ADHD are often seen through the behavior of an individual. Nevertheless, the problem is more than just what meets the eye. Basically, the four major sections of the brain, the frontal lobe, the cortex, the limbic system and the Reticular Activating System are mostly affecting the way one behaves especially when he is afflicted by ADHD.

Basically, the frontal lobe functions as the primary factor that makes it possible for one to pay attention. It allows one to focus on particular tasks that are expected to be finished within a particular span of time. It also provides a sense of control when one is faced with a particular situation. The emotional reactions that one inhibits often come from this particular section of the brain. As a result, those who suffer from ADHD lose such sense of control hence imposing a sense of impulsivity especially when it comes to the way they decide on matters, even the smallest issues that they have to deal with everyday.

Regarding the function of the inhibitory mechanisms that the cortex functions with, this part of the brain allows human individuals to think first before acting. Weighing the consequences of situations occur in this section of the brain. With a person suffering from ADHD, the impairment of such function makes it harder for him to decide properly on matters especially when they require immediate response. Often resulting to quick temper and wrong choice of words, the impulsivity among ADHD sufferers become an undeniable problem that needs to be given attention to.

The limbic system on the other end is the primary base of human emotions. Without control occurring in this section of the brain, an individual becomes highly moody and specifically incapable of releasing emotional reactions properly especially when dealing with others.

The Reticular Activating System on the other hand is the brain’s attention center. Connected to the spinal cord as it receives and sends information to and from the different parts of the body, the reticular activating system is the primary control operation of the brain that functions to direct the body as to how it should respond to particular situations. Overall, this aspect of the brain affects the entire function of an individual as a person. In persons with ADHD, the function of the Reticular Activating System could either be over-stimulated or is lacking in stimulation depending on the physiological problems that the person is suffering from. This is where the need for medication comes in.

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