Arousal thresholds during human tonic and phasic REM sleep
Arousal thresholds during human tonic and phasic REM sleep
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DOI：
10.1111/j.1365-2869.2010.00831.x
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发表时间：
2010-09-01
影响因子：
4.4
通讯作者：
Voss, Ursula
中科院分区：
文献类型：
--
作者：
Ermis, Ummehan;Krakow, Karsten;Voss, Ursula
本研究的目的是研究快速眼动（REM）睡眠的强直性和阶段性发作的觉醒阈值（AT），并比较REM与非REM（NREM）睡眠阶段的这些亚状态的频谱。我们发现这两个REM阶段的行为反应不同，外部声刺激。紧张性REM中的AT与睡眠阶段2中的AT无关，而阶段性REM中的AT与慢波睡眠（阶段4）中的AT相似。相似行为阈值的NREM和REM阶段在其频率模式方面明显不同。这些数据提供了进一步的证据，证明REM睡眠不应该被认为是一种统一的状态。关于脑电图频谱，我们发现，这两个REM阶段更相似，彼此比NREM阶段具有相似的响应。眼活动，如脑桥膝状体枕波和微跳视进行了讨论，作为可能的调制器的行为反应和皮层处理的听觉信息在两个REM子状态。
P>The goal of the present study was to investigate arousal thresholds (ATs) in tonic and phasic episodes of rapid eye movement (REM) sleep, and to compare the frequency spectrum of these sub-states of REM to non-REM (NREM) stages of sleep. We found the two REM stages to differ with regard to behavioural responses to external acoustic stimuli. The AT in tonic REM was indifferent from that in sleep stage 2, and ATs in phasic REM were similar to those in slow-wave sleep (stage 4). NREM and REM stages of similar behavioural thresholds were distinctly different with regard to their frequency pattern. These data provide further evidence that REM sleep should not be regarded a uniform state. Regarding electroencephalogram frequency spectra, we found that the two REM stages were more similar to each other than to NREM stages with similar responsivity. Ocular activity such as ponto-geniculo-occipital-like waves and microsaccades are discussed as likely modulators of behavioural responsiveness and cortical processing of auditory information in the two REM sub-states.