颞叶起源先兆期的长潜伏期诱发电位
Long-latency evoked potentials during aura of temporal lobe origin.
作者信息
Meador K J, Loring D W, Huh K, King D W, Gallagher B B
机构信息
Department of Neurology, Medical College of Georgia, Augusta 30912-3275.
出版信息
Int J Neurosci. 1990 Jan;50(1-2):127-30. doi: 10.3109/00207459008987165.
Long-latency evoked potentials recorded from scalp or scalp/sphenoidal electrodes have been shown to have diminished amplitude and power during interictal recordings on the side ipsilateral to an unilateral mesial temporal lobe (MTL) focus. We now report recordings of long-latency evoked potentials both during a prolonged aura and also on two seizure-free days. P3 amplitude and sphenoidal evoked potential (SpEP) spectral power in the scalp/sphenoidal channels were less, ipsilateral to the MTL focus. During the aura, the SpEPs had reduced power and reduced amplitude. However, the amplitude of the N2 component for the target averages in the CZ-A1A2 channel was markedly enhanced during the aura.
从头皮或头皮/蝶骨电极记录的长潜伏期诱发电位已显示，在单侧内侧颞叶（MTL）病灶同侧的发作间期记录中，其振幅和功率会降低。我们现在报告在长时间先兆期间以及两个无癫痫发作日记录的长潜伏期诱发电位。头皮/蝶骨通道中，MTL病灶同侧的P3振幅和蝶骨诱发电位（SpEP）频谱功率较低。在先兆期间，SpEPs的功率和振幅降低。然而，在先兆期间，CZ-A1A2通道中目标平均值的N2成分振幅明显增强。
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