失明会影响睡眠大脑的发育轨迹
Helene Vitali1, Claudio Campus2, Sabrina Signorini3
1Unit for Visually Impaired People, Center for Human Technologies, Fondazione Istituto Italiano di Tecnologia, Istituto Italiano di Tecnologia, Via Enrico Melen 83, Building B, Genoa 16152, Italy; DIBRIS, University of Genova, Genoa 16145, Italy.
NeuroImage
|January 5, 2024
概括
对于感觉运动处理至关重要的快速睡眠线索在盲儿童中发育不发达. 这一发现突出了快作为视力受损婴儿发育偏差的早期生物标志物,指导及时的治疗干预.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 睡眠医学 睡眠医学
背景情况:
- 睡眠旋对于大脑发育,感官处理和记忆巩固至关重要,反映了脑皮层回路活动.
- 睡眠螺丝被分为缓慢 (10-13 Hz) 和快速 (13-16 Hz) 类型,每一种都与不同的神经功能有关.
- 快速,在高西格玛波段振荡,与传感运动处理有关,这是受视觉剥夺影响的功能.
研究的目的:
- 调查失明对婴儿和幼儿睡眠的发展的影响.
- 确定盲人和严重视力障碍 (BSI) 儿童发育偏差的潜在早期生物标志物.
主要方法:
- 在50名盲人/严重视障 (BSI) 儿童和64名视觉正常的儿童中记录了午睡视频电脑电图 (EEG),年龄为5个月至6岁.
- 分析了睡眠的宏观和微观结构方面.
- 检查了高西格玛和高贝塔频段中与事件相关的光谱扰动.
主要成果:
- 在BSI儿童中,中部大脑区域缺乏发育螺旋演变.
- 年轻的BSI儿童显示中心高西格玛和高β活性降低,没有典型的成熟性下降.
- 在BSI儿童中观察到的低高西格玛和高β活性与感知和运动障碍的临床指标相关.
结论:
- 快速睡眠作为关键的早期生物标志物,用于识别BSI儿童的发育偏差.
- 这些发现强调了快速螺旋发展对于传感动力集成的重要性.
- 这些偏差的早期识别可以为视力受损儿童提供关键的治疗干预信息.
相关概念视频
01:13Insufficient Sleep and Sleep Deprivation
146
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...
146
01:22Photoreceptors and Visual Pathways
6.0K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
6.0K
01:11Understanding Sleep
229
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...
229
01:24Prosopagnosia
172
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
172
01:24Sleep-Wake Cycles
1.3K
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:
1.3K
01:22Stages of Sleep
193
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...
Before sleep begins, in wakefulness, the brain exhibits primarily beta waves, which are high in frequency and low in amplitude, indicating alertness...
193