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Epilepsy is a disorder of the central nervous system, specifically the brain. In simple terms, our nervous system is a communications network that controls every thought, emotion, impression, memory, and movement, essentially defining who we are. Nerves throughout the body function like telephone lines, enabling the brain to communicate with every part of the body via electrical signals. In epilepsy, the brain's electrical rhythms have a tendency to become imbalanced, resulting in recurrent seizures.
If you have seen a picture of the brain before, it probably looked like this one, which illustrates the outer surface of the upper brain. This outer surface contains numerous folds that increase the surface area and allow more cerebral cortex to be packed into the skull, giving us more "brain power."
The brain is an extraordinarily complex organ. When it comes to understanding epilepsy, there are several concepts about the brain you'll need to learn.
The first is that the brain works on electricity. Normally, the brain continuously generates tiny electrical impulses in an orderly pattern. These impulses travel along the network of nerve cells, called neurons, in the brain and throughout the whole body via chemical messengers called neurotransmitters. A seizure occurs when the brain's nerve cells misfire and generate a sudden, uncontrolled surge of electrical activity in the brain.
Another concept important to epilepsy is that different areas of the brain control different functions.
If seizures arise from a specific area of the brain, then the initial symptoms of the seizure often reflect the functions of that area. The right half of the brain controls the left side of the body, and the left half of the brain controls the right side of the body. So if a seizure starts from the right side of the brain, in the area that controls movement in the thumb, then the seizure may begin with jerking of the left thumb or hand.
In this section, learn more about The Human Brain, Epilepsy and Memory, and Thinking and Behavior.
This content is user-generated. Content is not monitored nor consistently reviewed by the epilepsy.com Editorial Board. Epilepsy.com therefore cannot guarantee the accuracy of any content edited with the Wiki sections. While epilepsy.com, the Epilepsy Therapy Project, and its partners encourage visitor interaction and publishing within these sections, users should use caution when exploring content, especially as it pertains to health concerns. No content on epilepsy.com is intended to replace the care of a doctor. We encourage you to contact your own health care provider for individual medical advice. We cannot provide second opinions or make specific recommendations regarding therapy, nor does this Wiki content constitute a recommendation for any diagnosis or treatment options.
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