睡眠限制和光强度对认知挑战期间的精神努力的影响
Larissa N Wüst1, Ruta Lasauskaite1
1Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, Switzerland; Research Cluster Molecular and Cognitive Neurosciences, University of Basel, Basel, Switzerland.
概括
睡眠时间缩短会增加精神上的努力,这可以通过更大的心血管反应来证明. 这项研究提供了第一个实验证据,将睡眠减少与认知任务期间增加的精力投入联系起来.
科学领域:
- 心血管生理学心血管生理学
- 睡眠科学 睡眠科学
- 认知心理学 认知心理学
背景情况:
- 睡眠时间减少与警觉性降低和潜在的感知任务需求增加有关.
- 环境因素,如光强度,也可能影响警觉性和认知力度.
- 心血管反应,特别是排泄前期 (PEP) 和缩血压 (SBP) 反应性,是同情神经系统活动和劳动力的指标.
研究的目的:
- 研究睡眠时间对与劳动力相关的心血管反应的影响.
- 为了检查光强度对精神努力的影响.
- 提供关于睡眠限制与精神劳动之间的关系的实验证据.
主要方法:
- 24名健康的志愿者参加了两次会议,他们有5小时或8小时的睡眠机会.
- 在修改的听觉斯特恩伯格任务中,参与者暴露在不同的光强度 (100 lx vs 500 lx) 中.
- 测量了心血管反应,包括PEP和SBP反应性,以评估努力.
主要成果:
- 睡眠限制 (5小时) 导致系统血压 (SBP) 和透气血压 (DBP) 反应性显著增加,表明增加了努力.
- 较高的光强度 (500 lx) 与较低的光强度 (100 lx) 相比,导致更高的PEP反应性.
- 这些发现支持了这样一个假设:睡眠时间缩短会增加精神上的努力.
结论:
- 较短的睡眠时间显著提高了精神上的努力,这体现在心血管反应中.
- 光强度对心血管力度有不同的影响,光强度更高会增加PEP的反应性.
- 这项研究提供了第一个实验验证,证明了睡眠不足与增加精神努力之间的联系.
更多相关视频
08:08Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory
Published on: June 18, 2014
27.0K
08:36Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
Published on: August 8, 2019
11.9K
相关概念视频
01:13Insufficient Sleep and Sleep Deprivation
134
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
134
01:11Understanding Sleep
220
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...
220
01:19Management of Insomnia
231
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...
231
01:24Sleep-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:
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
1.2K
01:38Cognitive Dissonance
32.5K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
32.5K