相关实验视频

Updated: Aug 2, 2026

Polygraphic Recording Procedure for Measuring Sleep in Mice
08:45

Polygraphic Recording Procedure for Measuring Sleep in Mice

Published on: January 25, 2016

在悖论性 (REM) 睡眠期间,从大脑皮层释放乙胆

H H Jasper, J Tessier

    Science (New York, N.Y.)
    |May 7, 1971
    PubMed
    概括

    从猫大脑释放的乙胆在激活睡眠和清醒期间增加. 这种神经递质释放与大脑活动模式有关,而不是行为反应能力.

    更多相关视频

    Recording Gamma Band Oscillations in Pedunculopontine Nucleus Neurons09:04

    Recording Gamma Band Oscillations in Pedunculopontine Nucleus Neurons

    Published on: September 14, 2016

    Manipulation of Epileptiform Electrocorticograms (ECoGs) and Sleep in Rats and Mice by Acupuncture09:06

    Manipulation of Epileptiform Electrocorticograms (ECoGs) and Sleep in Rats and Mice by Acupuncture

    Published on: December 22, 2016

    相关概念视频

    Relaxation of Skeletal Muscles01:29

    Relaxation of Skeletal Muscles

    The period of muscle contraction primarily influences the duration of stimulation at the neuromuscular junction (NMJ), the presence of free calcium ions in the sarcoplasm, and the availability of energy or ATP to support contractions.
    When an action potential reaches the axon terminal, it depolarizes the membrane and opens voltage-gated sodium channels. Sodium ions enter the cell, further depolarizing the presynaptic membrane. This depolarization causes voltage-gated calcium channels to open.
    Sleep-Wake Cycles01:24

    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:
    Stages of Sleep01:22

    Stages of Sleep

    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...
    Lucid Dreaming01:10

    Lucid Dreaming

    Lucid dreaming is a unique state of consciousness where an individual realizes they are dreaming while still in the dream. This awareness allows them to manipulate their dream environment consciously. Researchers like Stephen LaBerge have significantly contributed to the understanding of lucid dreams, highlighting that during these dreams, certain areas of the brain, such as the prefrontal cortex, that involve self-awareness and thought evaluation show increased activity.
    Studies have shown...
    REM Sleep Behavior Disorder01:15

    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...
    Optimal Arousal Theory01:23

    Optimal Arousal Theory

    The optimal arousal theory suggests that performance is maximized when an individual experiences a moderate level of arousal. This theory is closely tied to the Yerkes-Dodson law, which illustrates an inverted U-shaped relationship between arousal and performance. The law, formulated by psychologists Robert Yerkes and John Dodson, implies an ideal arousal level for optimal performance, and deviations from this level can lead to declines in effectiveness.
    Inverted U-Shaped Performance Curve
    The...