Calzolari S, Rozza L, De Marco P
Child Neuropsychiatry Unit, Santa Chiara Hospital, Trento, Italy.
J Clin Neurophysiol. 1997 Nov;14(6):523-8. doi: 10.1097/00004691-199711000-00009.
It is known that hand tapping during electroencephalography (EEG) recording evokes centrotemporal spikes in some 4- to 12-year-old children. This phenomenon occurs in both healthy and epileptic children. The same children were reported to show giant middle-long latency evoked potentials (MLSEPs). To study the relationship between tactile evoked spikes (TES) and MLSEPs, we performed a neurophysiologic investigation in 25 children with TES and in 25 children without any EEG abnormality. Such an investigation included a MLSEP study after both electrical and tactile stimulation with simultaneous recording of digital EEG. MLSEPs consistently showed three negative (NI, NII, NIII) and two positive (PI, PII) peaks. Children with TES had MLSEPs of enlarged amplitude. The analysis of MLSEPs and TES characteristics led us to the conclusion that they are the same neurophysiologic event, with NII being the evoked spike and NIII the following slow-wave.
众所周知，在脑电图（EEG）记录过程中轻敲手部会在一些4至12岁儿童中诱发中央颞部尖波。这种现象在健康儿童和癫痫儿童中均会出现。据报道，这些儿童还会出现巨大的中长潜伏期诱发电位（MLSEP）。为了研究触觉诱发尖波（TES）与MLSEP之间的关系，我们对25名有TES的儿童和25名无任何EEG异常的儿童进行了神经生理学研究。该研究包括在电刺激和触觉刺激后进行MLSEP研究，并同时记录数字EEG。MLSEP始终显示出三个负波峰（NI、NII、NIII）和两个正波峰（PI、PII）。有TES的儿童MLSEP波幅增大。对MLSEP和TES特征的分析使我们得出结论，它们是同一神经生理事件，其中NII是诱发尖波，NIII是随后的慢波。
