Is High‐Frequency Activity at Seizure Onset Inhibitory? A Stereoelectroencephalographic Study of Motor Cortex Seizures
Hussam Shaker,
Jian Li,
Masako Kobayashi
et al.
Abstract:ObjectiveIn the era of stereoelectroencephalography (SEEG), many studies have been devoted to understanding the role of interictal high‐frequency oscillations. High‐frequency activity (HFA) at seizure onset has been identified as a marker of epileptogenic zone. We address the physiological significance of ictal HFAs and their relation to clinical semiology.MethodsWe retrospectively identified patients with pure focal primary motor epilepsy. We selected only patients in whom SEEG electrodes were optimally place… Show more
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