Auditory manifestations during focal seizures

Interictal and particularly ictal surface and invasive recordings allow, in most of cases, the precise localization of the cortical area responsible of ictal discharges. During surface Video-EEG the localization could be a little complicated, considering the presence of artefacts, but the occurrence of a low voltage fast activity or a fl attening, permits, coupling with the onset of clinical symptomatology, to defi ne a hypothesis concerning the localization and the extension of the EZ.