Ofer Michael Gonen
High-frequency oscillations are changes in electrical potentials in the EEG in frequencies above 80 Hz. In recent years it was discovered that these oscillations have great importance both in physiologic processes and as an expression of epileptogenic areas in the cerebral cortex. The measurement of these oscillations via depth-electrodes during pre-surgical evaluation of epilepsy patients has been proven to be an important tool in improving the ability to delineate exactly the area which should be resected, in case such an operation is feasible. New technical developments enable the acquisition of high-frequency oscillations from scalp electrodes as well, which could have great importance in brain research and care of epilepsy patients in the future.
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