Determination of the clinical significance of focal or generalized spikes or epileptiform discharges may also be a source of confusion and a potential pitfall. Understanding of normal pitfalls, variations in normal EEG and study of benign variants are important things to learn in EEG. The interpretation of the EEG should be done in a step wise and organized fashion to avoid over calling, or even under calling the findings while keeping in mind that the interpretation depends heavily on the training and the comfort level of the reader. While the EEG is an extremely useful tool in diagnosing epilepsy, this test should be used in conjunction with the available clinical history and any imaging studies and not as a diagnostic tool by itself. Since that first description, EEG has been widely used to aid the clinician in an accurate diagnosis and management of epilepsies. Electroencephalography (EEG) was first described by Hans Berger in 1929.
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