Terzano M G, Parrino L, Fioriti G, Spaggiari M C, Piroli A
Funct Neurol. 1986 Jan-Mar;1(1):29-41.
The Cyclic Alternating Pattern (CAP) is an EEG biphasic periodic activity of normal NREM sleep, generally organized in sequences of two or more cycles and correlated to long-lasting fluctuations in the level of arousal. The remaining NREM sleep is characterized by prolonged stationary activities or non-CAP (NCAP). Criteria for the detection of morphology and reactivity of CAP and NCAP segments are defined in the sleep recordings of 10 healthy young adults. Standard sleep variables and CAP rates, referred to the ratio of CAP time to Total NREM sleep time (CAPR/NREM) and to each NREM sleep stage, were scored for statistical inferences and correlations. CAPR/NREM may be considered an additional non-redundant sleep variable which determines the measure of arousal instability during NREM sleep. The relationship between CAP and the biphasic behavior of microarousals is discussed.
周期性交替模式（CAP）是正常非快速眼动睡眠的一种脑电图双相周期性活动，通常以两个或更多周期的序列组织，并与觉醒水平的长期波动相关。其余的非快速眼动睡眠以延长的静止活动或非CAP（NCAP）为特征。在10名健康年轻成年人的睡眠记录中定义了检测CAP和NCAP片段的形态和反应性的标准。对标准睡眠变量和CAP率进行评分，CAP率指CAP时间与总非快速眼动睡眠时间的比值（CAPR/NREM）以及与每个非快速眼动睡眠阶段的比值，用于统计推断和相关性分析。CAPR/NREM可被视为一个额外的非冗余睡眠变量，它决定了非快速眼动睡眠期间觉醒不稳定的程度。文中讨论了CAP与微觉醒双相行为之间的关系。
