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相关概念视频

Stages of Sleep01:22

Stages of Sleep

179
Sleep progresses through distinct stages, each characterized by specific brain wave patterns and physiological responses ranging from wakefulness to stages of non-rapid eye movement, known as non-REM, to rapid eye movement, referred to as REM. Understanding these stages helps in recognizing how sleep supports various bodily and cognitive functions.
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
179
Sleep-Wake Cycles01:24

Sleep-Wake Cycles

1.2K
Sleep is an essential physiological process vital to maintaining overall well-being. The reticular activating system (RAS), a network of neurons in the brainstem, regulates wakefulness and sleep. While it may seem passive, sleep consists of distinct cycles, each with its unique characteristics and functions. Two key sleep phases are non-rapid eye movement (NREM) and  rapid eye movement (REM).
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
1.2K
Management of Insomnia01:19

Management of Insomnia

237
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
237
Narcolepsy01:07

Narcolepsy

96
Narcolepsy is a chronic sleep disorder characterized by pervasive, uncontrolled sleepiness and other sleep disturbances. One of its hallmark symptoms is an abrupt transition to REM sleep upon falling asleep, which causes symptoms typically associated with this phase to occur unexpectedly during wakefulness. These include the following symptoms, which typically last from a minute or two to half an hour.
96
Understanding Sleep01:11

Understanding Sleep

224
Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
224
Nightmares and Night Terrors01:18

Nightmares and Night Terrors

82
Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares...
82

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相关实验视频

Updated: Jun 17, 2025

Author Spotlight: IntelliSleepScorer — A High-Accuracy, Accessible GUI Software for Automated Sleep Stage Scoring in Mice and its Application in Psychiatric Research
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Author Spotlight: IntelliSleepScorer — A High-Accuracy, Accessible GUI Software for Automated Sleep Stage Scoring in Mice and its Application in Psychiatric Research

Published on: November 8, 2024

478

ESSN:一个高效的睡眠序列网络,用于自动睡眠分期.

Yongliang Chen, Yudan Lv, Xinyu Sun

    IEEE journal of biomedical and health informatics
    |August 14, 2024
    PubMed
    概括
    此摘要是机器生成的。

    本研究介绍了一种高效睡眠序列网络 (ESSN),用于在计算能力有限的设备上准确的自动睡眠分阶段. ESSN提高了效率,减少了N1阶段的混,为现有方法提供了有竞争力的替代方案.

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    Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
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    相关实验视频

    Last Updated: Jun 17, 2025

    Author Spotlight: IntelliSleepScorer — A High-Accuracy, Accessible GUI Software for Automated Sleep Stage Scoring in Mice and its Application in Psychiatric Research
    04:54

    Author Spotlight: IntelliSleepScorer — A High-Accuracy, Accessible GUI Software for Automated Sleep Stage Scoring in Mice and its Application in Psychiatric Research

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    Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
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    科学领域:

    • 生物医学工程 生物医学工程
    • 计算机科学 计算机科学
    • 睡眠医学 睡眠医学

    背景情况:

    • 先进的自动睡眠分阶段算法显示出希望,但在有限的计算资源和N1阶段混乱的情况下扎.
    • 现有的方法不适合用于便携式睡眠检测或消费者级睡眠障碍查.

    研究的目的:

    • 开发一个高效的自动睡眠分阶段算法 (ESSN),适合低功耗计算环境.
    • 解决目前睡眠分期算法中普遍存在的N1阶段混问题.
    • 为了实现高精度的自动睡眠分期与降低计算成本.

    主要方法:

    • 提出了一个高效的睡眠序列网络 (ESSN),具有专门的计算效率结构.
    • 引入了一个新的N1结构损失函数,利用N1过渡概率来缓解混乱.
    • 在SHHS数据集上对ESSN进行了评估,其中包括5,793名受试者.

    主要成果:

    • 在SHHS数据集上,ESSN的整体准确度为88.0%,宏F1为81.2%,Cohen的kappa为0.831.
    • 该模型以0.27M参数和0.35G浮点运算为200个样本输入的低计算要求.
    • 在相同的硬件上,ESSN的推断速度是L-SeqSleepNet的两倍,准确度也更高.

    结论:

    • ESSN为自动睡眠分阶段提供了高效和准确的解决方案,特别是在资源有限的环境中.
    • 新的N1结构损失有效地减少了N1阶段的混乱,提高了诊断可靠性.
    • 对于临床辅助和消费者应用的最先进方法,ESSN具有竞争优势.