Fig. 2From: Vestibular seizures and spontaneous downbeat nystagmus of ganglioglioma origin: a case reportA This EEG was recorded in the deep sleep state. Note the sharp wave followed by slow wave at the right anterior (F8) and mid-temporal leads (T4). B The slow-wave components of the interictal epileptiform discharges arising from the right temporal region, consistent with location of the lesionBack to article page