Validation of sleep-2-Peak: A smartphone application that can detect fatigue-related changes in reaction times during sleep deprivation
Validation of sleep-2-Peak: A smartphone application that can detect fatigue-related changes in reaction times during sleep deprivation
复制标题
DOI：
10.3758/s13428-016-0802-5
复制
发表时间：
2017-08-01
影响因子：
5.4
通讯作者：
Forest, Genevieve
中科院分区：
文献类型：
--
作者：
Brunet, Jean-Francois;Dagenais, Dominique;Forest, Genevieve
尽管它在睡眠不足的情况下具有很高的灵敏度和有效性，但心理警觉测试（PVT）可以改进。本研究的目的是验证一种新的智能手机PVT类型的应用程序，称为sleep-2-Peak（s2 P），通过确定其在延长清醒的情况下评估疲劳相关的警觉性变化的能力。短3分钟版本的s2 P和经典的PVT管理在每一个偶数小时在35小时的总睡眠剥夺协议。此外，还收集了嗜睡的主观测量值。然后使用皮尔逊积差相关、t检验和重复测量组内方差分析对这些测试的结果进行比较。结果表明，这两种测试在所有结果变量上都显着相关，在同一个体中，这两种测试都显着区分了警觉和困倦状态，并且随着睡眠损失的积累，这两种测试在睡眠剥夺方案中的变化相似。两项测试的所有结果变量也与主观嗜睡指标显著相关。这些结果表明，3分钟版本的s2 P是一个有效的工具，用于区分警觉和困倦状态，并作为敏感的PVT跟踪疲劳相关的变化，在延长觉醒和睡眠丧失。与PVT不同，s2 P不会在每次试验中向受试者提供反馈。我们讨论了S2 P的这一功能如何提高了S2 P测量的性能结果可能受到动机混淆的影响较小的可能性，使该工具在特定的临床和/或研究环境中增加了价值。
Despite its high sensitivity and validity in the context of sleep loss, the Psychomotor Vigilance Test (PVT) could be improved. The aim of the present study was to validate a new smartphone PVT-type application called sleep-2-Peak (s2P) by determining its ability to assess fatigue-related changes in alertness in a context of extended wakefulness. Short 3-min versions of s2P and of the classic PVT were administered at every even hour during a 35-h total sleep deprivation protocol. In addition, subjective measures of sleepiness were collected. The outcomes on these tests were then compared using Pearson product-moment correlations, t tests, and repeated measures within-groups analyses of variance. The results showed that both tests significantly correlated on all outcome variables, that both significantly distinguished between the alert and sleepy states in the same individual, and that both varied similarly through the sleep deprivation protocol as sleep loss accumulated. All outcome variables on both tests also correlated significantly with the subjective measures of sleepiness. These results suggest that a 3-min version of s2P is a valid tool for differentiating alert from sleepy states and is as sensitive as the PVT for tracking fatigue-related changes during extended wakefulness and sleep loss. Unlike the PVT, s2P does not provide feedback to subjects on each trial. We discuss how this feature of s2P raises the possibility that the performance results measured by s2P could be less impacted by motivational confounds, giving this tool added value in particular clinical and/or research settings.