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Epilepsy is a disorder of brain electrical activity that results in recurrent seizures. The type of seizure depends on the portion of the brain affected. While there are many different causes of seizures, including brain tumors, development, head injury, and stroke. Conventional treatment of epilepsy consists primarily of anticonvulsant medication. Although these drugs often control and reduce the frequency of seizures, the drugs are often not without side-effects   



Epilepsy can differentiate from other seizure like-disorders through the use of EEG During the seizure the EEG reveals epileptiform waves, which are mainly sharp waves (of 80-200ms duration) and spikes (of 20-80ms duration) that may also appear as spike-wave complexes in combination with the slow waves. In focal epilepsy, at the start of a seizure (ictus) epileptiform potentials are recorded in electrodes close to the focus, and in the case of a secondary generalization they spread consequentially to all electrode locations. In a primary generalized seizure, they start with the same amplitude at all electrodes at the same time. However, epileptiform potentials can also be registered during the seizure-free period between two seizures. A neurologist is the practitioner responsible for diagnosing seizures.  


With electroencephalographic (EEG) biofeedback (or neurofeedback), it is possible to train the brain to de-emphasize rhythms that lead to generation and propagation of seizure and emphasize rhythms that make seizures less likely to occur. With recent improvements in quantitative EEG measurement and improved neurofeedback protocols, it has become possible in clinical practice to eliminate seizures or reduce the amount of medication required to control them.

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