Invasive monitoring aids in selecting patients for epilepsy surgery. This article reviews the methods employed to obtain intracranial EEG, data interpretation, and problems that arise during intracranial investigations. The relative merits of depth, subdural, epidural, and foramen ovale electrodes are reviewed, and a strategy for their use is suggested. Characteristic interictal and ictal EEG findings are summarized, and the problems encountered in interpreting data are discussed.
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Michael R. Sperling (1997) studied this question.
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