Matsuo Masahiro, Masuda Fumi, Sumi Yukiyoshi, Takahashi Masahiro, Yamada Naoto, Ohira Masako Hasegawa, Fujiwara Koichi, Kanemura Takashi, Kadotani Hiroshi
Department of Psychiatry, Shiga University of Medical Science , Otsu , Japan.
Faculty of Education, Shiga University , Hikone , Japan.
Front Neurol. 2016 Jul 15;7:110. doi: 10.3389/fneur.2016.00110. eCollection 2016.
Humans spend more than one-fourth of their life sleeping, and sleep quality has been significantly linked to health. However, the objective examination of ambulatory sleep quality remains a challenge, since sleep is a state of unconsciousness, which limits the reliability of self-reports. Therefore, a non-invasive, continuous, and objective method for the recording and analysis of naturalistic sleep is required.
Portable sleep recording devices provide a suitable solution for the ambulatory analysis of sleep quality. In this study, the performance of two activity-based sleep monitors (Actiwatch and MTN-210) and a single-channel electroencephalography (EEG)-based sleep monitor (SleepScope) were compared in order to examine their reliability for the assessment of sleep quality.
Twenty healthy adults were recruited for this study. First, data from daily activity recorded by Actiwatch and MTN-210 were compared to determine whether MTN-210, a more affordable device, could yield data similar to Actiwatch, the de facto standard. In addition, sleep detection ability was examined using data obtained by polysomnography as reference. One simple analysis included comparing the sleep/wake detection ability of Actiwatch, MTN-210, and SleepScope. Furthermore, the fidelity of sleep stage determination was examined using SleepScope in finer time resolution.
The results indicate that MTN-210 demonstrates an activity pattern comparable to that of Actiwatch, although their sensitivity preferences were not identical. Moreover, MTN-210 provides assessment of sleep duration comparable to that of the wrist-worn Actiwatch when MTN-210 was attached to the body. SleepScope featured superior overall sleep detection performance among the three methods tested. Furthermore, SleepScope was able to provide information regarding sleep architecture, although systemic bias was found.
The present results suggest that single-channel EEG-based sleep monitors are the superior option for the examination of naturalistic sleep. The current results pave a possible future use for reliable portable sleep assessment methods in an ambulatory rather than a laboratory setting.
人类一生中有超过四分之一的时间在睡眠，睡眠质量与健康密切相关。然而，动态睡眠质量的客观检测仍是一项挑战，因为睡眠是一种无意识状态，这限制了自我报告的可靠性。因此，需要一种用于记录和分析自然睡眠的非侵入性、连续性和客观性方法。
便携式睡眠记录设备为动态睡眠质量分析提供了合适的解决方案。在本研究中，比较了两种基于活动的睡眠监测仪（Actiwatch和MTN - 210）以及一种基于单通道脑电图（EEG）的睡眠监测仪（SleepScope）的性能，以检验它们评估睡眠质量的可靠性。
招募了20名健康成年人参与本研究。首先，比较Actiwatch和MTN - 210记录的日常活动数据，以确定价格更为亲民的MTN - 210能否产生与事实上的标准设备Actiwatch相似的数据。此外，以多导睡眠图获得的数据为参考，检验睡眠检测能力。一项简单分析包括比较Actiwatch、MTN - 210和SleepScope的睡眠/觉醒检测能力。此外，使用SleepScope以更精细的时间分辨率检验睡眠阶段判定的保真度。
结果表明，MTN - 210呈现出与Actiwatch相当的活动模式，尽管它们的敏感度偏好不尽相同。此外，当MTN - 210佩戴在身体上时，其提供的睡眠时间评估与腕戴式Actiwatch相当。SleepScope在三种测试方法中总体睡眠检测性能最佳。此外，SleepScope能够提供有关睡眠结构的信息，尽管存在系统偏差。
目前的结果表明，基于单通道脑电图的睡眠监测仪是检测自然睡眠的更佳选择。当前结果为可靠的便携式睡眠评估方法在动态而非实验室环境中的未来应用铺平了道路。
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