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Related Concept Videos

Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

147
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...
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Overview of Synapses01:25

Overview of Synapses

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A synapse is a specialized structure where two neurons connect, allowing them to pass an electrical or chemical signal to another neuron. It is the point of communication between neurons. The term "synapse" is derived from the Greek word "synapsis," which means "conjunction." The entire process of neural communication revolves around the synapse. When activated, a neuron releases chemicals known as neurotransmitters into the synapse. These neurotransmitters cross the synapse and bind to...
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Understanding Sleep01:11

Understanding Sleep

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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...
234
Long-term Depression01:05

Long-term Depression

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Long-term depression, or LTD, is one of the ways by which synaptic plasticity—changes in the strength of chemical synapses—can occur in the brain. LTD is the process of synaptic weakening that occurs over time between pre and postsynaptic neuronal connections. The synaptic weakening of LTD works in opposition to synaptic strengthening by long-term potentiation (LTP) and together are the main mechanisms that underlie learning and memory.
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Sleep-Wake Cycles01:24

Sleep-Wake Cycles

1.4K
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:
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Disorders of the Nervous Tissue01:28

Disorders of the Nervous Tissue

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Nervous tissue is a vital component of the human body's communication system, enabling us to perceive and respond to stimuli. However, like all other tissues, it is vulnerable to disorders and diseases that can significantly impact our neurological functioning.
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
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Related Experiment Video

Updated: Jul 10, 2025

Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling
03:46

Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling

Published on: October 11, 2018

10.1K

Developing forebrain synapses are uniquely vulnerable to sleep loss.

Sean M Gay, Elissavet Chartampila, Julia S Lord

    Biorxiv : the Preprint Server for Biology
    |November 21, 2023
    PubMed
    Summary
    This summary is machine-generated.

    Sleep deprivation harms developing brains more than adult brains, impacting synapse development and cognitive function. This vulnerability in juveniles may link to neurodevelopmental disorders like autism spectrum disorder.

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    A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
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    Noninvasive, High-throughput Determination of Sleep Duration in Rodents
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    Noninvasive, High-throughput Determination of Sleep Duration in Rodents

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    Related Experiment Videos

    Last Updated: Jul 10, 2025

    Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling
    03:46

    Chronic Sleep Deprivation in Mouse Pups by Means of Gentle Handling

    Published on: October 11, 2018

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    A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
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    A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice

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    Noninvasive, High-throughput Determination of Sleep Duration in Rodents
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    Noninvasive, High-throughput Determination of Sleep Duration in Rodents

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    Area of Science:

    • Neuroscience
    • Developmental Biology
    • Sleep Science

    Background:

    • Sleep is crucial for brain health and cognition, with synapses being key targets.
    • Synaptic function and vulnerability to sleep deprivation (SD) differ between developing and adult brains.
    • Sleep problems are prevalent in neurodevelopmental disorders, such as autism spectrum disorder (ASD).

    Conclusions:

    • Sleep serves distinct developmental functions, with developing synapses being uniquely vulnerable to sleep disruption.
    • Early-life sleep disruption has lasting effects on brain development and behavior, potentially contributing to ASD susceptibility.
    • The developing synapse is a critical nexus linking sleep deprivation vulnerability and ASD genetic risk.