Electrical Synchronization of Slow Oscillations to Enhance Deep Sleep
试验速览
- 阶段
- 早期 1 期
- 状态
- 已完成
- 发起方
- 入组人数
- 13
- 试验地点
- 2
- 主要终点
- N3 Duration
研究概览
简要总结
This study applied slowly oscillating (0.5 hz) transcranial electrical stimulation (TES; frontopolar and lateral frontal electrodes versus mastoid and occipital electrode returns) to synchronize the endogenous slow oscillations (SOs) of deep sleep (N3 or stage 3 Non-REM). A double-blind placebo control provided no stimulation. The primary endpoint was duration of N3 sleep during the night. Thirteen normal adults completed the study (before the study was terminated because of COVID-19), and usable data were obtained from ten. The synchronizing stimulation resulted in significantly longer N3 sleep compared to placebo.
详细描述
Previous studies have demonstrated successful synchronization of SOs with slow TES pulses. However, the stimulation in those studies used electrodes in dorsolateral frontal areas (F3, F4 versus contralateral mastoids), consistent with the assumption that human SOs emanate from frontal neocortex. In the present study, we hypothesized that transcranial electrical stimulation (TES) could be applied to frontopolar and inferior frontal head sites in order to synchronize the limbic sources of SOs specifically and thereby enhance the duration of N3 sleep. Furthermore, based on our computational modeling with this more optimal targeting of the limbic sites, we hypothesized that we could use lower TES current levels (0.5 mA versus 1 or 2 mA in previous studies) that would be unlikely to disrupt sleep and that may still be successful in synchronizing SOs to enhance the adaptive neurophysiology of deep sleep.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- Double (Participant, Care Provider)
盲法说明
Participants were blind to which night was stimulation. Experimenters were blinded until the participant was asleep, when they opened an email that specified delivery of stimulation or sham.
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- 未提供
排除标准
- •history of seizures
- •brain trauma or injury
- •sleep apnea
- •medications that may affect the EEG.
研究组 & 干预措施
Sham Control
No current delivered.
干预措施: Transcranial Electrical Stimulation (Device)
Slow Oscillation Synchronization with TES
Transcranial Electrical Stimulation, 0.5 Hz sine wave, 0.5 mA, between frontal (frontopolar and inferior lateral frontal) and posterior (mastoid and occipital) electrodes.
干预措施: Transcranial Electrical Stimulation (Device)
结局指标
主要结局
N3 Duration
时间窗: Measured during the night of sleep (typically 8 hours)
Duration in minutes of N3 sleep
次要结局
- N3 Percentage(Measured during the night of sleep (typically 8 hours))