Kraus N, McGee T, Comperatore C
Michael Reese Medical Center, Chicago, Illinois.
Ear Hear. 1989 Dec;10(6):339-45. doi: 10.1097/00003446-198912000-00004.
Auditory middle latency responses (MLRs) were recorded continuously from normal children, ages 4 to 9 years, during natural sleep. Concurrently obtained EEG recordings were used to determine stages of sleep. Wave Pa was consistently present during wakefulness, alpha, stage 1, and REM sleep. Wave Pa detectability was poor during stage 4 sleep. The probability of obtaining wave Pa during stage 4 increased systematically with age. During stages 2 and 3, Pa detectability was variable. The inconsistency of MLRs in children currently limits their clinical use. These data indicate that the occurrence of MLRs in children is not haphazard, and that the MLR in children can be reliably obtained during certain states of arousal. A straightforward clinical application of these findings is that efforts to obtain MLRs be concentrated during periods favorable for recording the response. We suggest practical strategies for detecting optimal sleep stages.
在自然睡眠期间，连续记录了4至9岁正常儿童的听觉中潜伏期反应（MLR）。同时获得的脑电图记录用于确定睡眠阶段。波Pa在清醒、α波、第1阶段和快速眼动睡眠期间持续存在。在第4阶段睡眠期间，波Pa的可检测性较差。在第4阶段获得波Pa的概率随年龄系统性增加。在第2和第3阶段，Pa的可检测性是可变的。目前儿童MLR的不一致性限制了它们的临床应用。这些数据表明，儿童MLR的出现并非偶然，并且在某些觉醒状态下可以可靠地获得儿童的MLR。这些发现的一个直接临床应用是，应将获取MLR的努力集中在有利于记录反应的时间段。我们提出了检测最佳睡眠阶段的实用策略。
