Görke W, Lerch M
Universitätskinderklinik Bochum.
EEG EMG Z Elektroenzephalogr Elektromyogr Verwandte Geb. 1990 Jun;21(2):111-7.
In 68 children without brain-disease, 3 months to 8 years of age, auditory non-target event-related potentials have been elicited. A 500 Hz-tone of 500 ms duration served as frequent stimulus, while a seldom (20%) and irregularly offered 2000 Hz-tone of the same duration produced the event-related potentials. Comparison between the four kinds of successively recorded potentials (100% 500 Hz, 80% 500 Hz with 20% 2000 Hz, and 100% 2000 Hz) led to the identification of potentials reflecting discrimination of the two sounds, since their latencies significantly differed in the event-related potential from the other three kinds of potentials. Latencies of the peaks in the event-related potentials showed evidence of maturation with increasing age. Normal values with 2.5-sigma border of the latencies of the event-related peaks were compiled bringing about the possibility to use the method in the clinical work-up of children with brain diseases.
在68名3个月至8岁无脑病的儿童中，诱发了听觉非目标事件相关电位。持续500毫秒的500赫兹纯音作为频繁刺激，而持续时间相同但很少（20%）且不规则出现的2000赫兹纯音则诱发事件相关电位。对连续记录的四种电位（100%为500赫兹、80%为500赫兹且20%为2000赫兹、100%为2000赫兹）进行比较后，识别出了反映两种声音辨别的电位，因为在事件相关电位中，它们的潜伏期与其他三种电位有显著差异。事件相关电位中峰值的潜伏期显示出随年龄增长而成熟的迹象。编制了事件相关峰值潜伏期的正常数值及2.5倍标准差边界，从而有可能将该方法用于患有脑部疾病儿童的临床检查。
