相关实验视频
Updated: Jun 13, 2026

08:45
Polygraphic Recording Procedure for Measuring Sleep in Mice
Published on: January 25, 2016
23.4K
冬眠和非冬眠的美国黑熊的自动睡眠评分
bioRxiv : the preprint server for biology
|April 16, 2025
概括
机器学习在冬眠期间准确地得分熊睡眠状态. 像Somnotate这样的自动化方法显示出高精度,验证了它们用于分析熊睡眠模式和代谢抑制的使用.
科学领域:
- 动物学 动物学
- 神经科学是一个神经科学.
- 计算生物学 计算生物学
背景情况:
- 冬眠中的熊表现出显著的代谢抑制,尽管核心体温中度下降,但代谢下降高达75%.
- 了解睡眠在这种低代谢状态中的作用对于理解冬季休眠期间熊的生理学至关重要.
研究的目的:
- 为了评估机器学习分类器 (Somnotate和Somnivore) 对冬眠中的美国黑熊的自动睡眠评分的有效性.
- 解决有关大脑温度变化对脑电图 (EEG) 信号和冬眠物种的自动睡眠检测的影响的担忧.
主要方法:
- 在3500天内,生物计量记录了16只被囚禁的美国黑熊的EEG,电眼图 (EOG) 和电肌图 (EMG) 数据.
- 开发和应用两个机器学习分类器,Somnotate和Somnivore,训练在广泛数据集的子集.
- 在冬眠期间和夏季在高和低体温下记录的三个手动得分器通过共识评分来建立参考数据.
主要成果:
- 与手动评分相比,Somnotate和Somnivore都实现了高精度,F测量值在0.90到0.98之间.
- 自动评分表明,冬眠的睡眠时间大约是夏季睡眠的两倍.
- 在冬眠期间自动和手动得分之间的警状态分布中没有发现显著差异.
结论:
- 机器学习分类器,特别是Somnotate在适当的数据上训练时,表现出与冬眠熊手动睡眠得分器相当的准确性.
- 这些自动化方法是分析熊睡眠的大数据集的可靠工具,即使身体温度波动.
- 这些发现支持在未来对熊的冬眠和代谢调节的研究中使用自动睡眠评分.
更多相关视频
07:33Noninvasive, High-throughput Determination of Sleep Duration in Rodents
Published on: April 18, 2018
7.7K
04:54Author 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
404
相关概念视频
Sleep-Wake Cycles
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:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
Understanding Sleep
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...
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...
REM Sleep Behavior Disorder
REM Sleep Behavior Disorder (RBD) is a sleep disorder characterized by the absence of muscle paralysis that normally occurs during the REM phase of sleep. This absence allows individuals to physically act out their dreams, which are often vivid and disturbing. Common behaviors exhibited during episodes include kicking, punching, and yelling. These actions can be dangerous, potentially leading to injuries for the person with RBD or their bed partner.
RBD is significantly associated with...
RBD is significantly associated with...
Narcolepsy
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.