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Related Concept Videos

Stages of Sleep01:22

Stages of Sleep

258
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...
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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...
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Sleep-Wake Cycles01:24

Sleep-Wake Cycles

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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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Brain Imaging01:14

Brain Imaging

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Brain imaging technologies provide critical insights into both the structure and function of the human brain, enabling medical professionals and researchers to diagnose, study, and treat neurological disorders or psychiatric disorders more effectively.
These technologies include computerized axial tomography (CAT or CT scans), positron-emission tomography (PET scans),  magnetic resonance imaging (MRI),  functional magnetic resonance imaging (fMRI), and Transcranial Magnetic...
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REM Sleep Behavior Disorder01:15

REM Sleep Behavior Disorder

246
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...
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Related Experiment Video

Updated: Jul 16, 2025

Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
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Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood

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Correction to: Sleep and Neuroimaging.

Kyoungjune Pak1, Jiyoung Kim2, Keunyoung Kim1

  • 1Department of Nuclear Medicine and Biomedical Research Institute, Pusan National University Hospital and School of Medicine, Pusan National University, Busan, Republic of Korea.

Nuclear Medicine and Molecular Imaging
|September 18, 2023
PubMed
Summary
This summary is machine-generated.

This study corrects a previously published article DOI. The correction ensures accurate citation and referencing for future research in the field.

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Area of Science:

  • Correction of scientific literature
  • Bibliographic accuracy in research

Context:

  • Ensuring the integrity of scientific records
  • Maintaining accurate citation trails in academic publishing

Purpose:

  • To rectify an error in the article's Digital Object Identifier (DOI)
  • To provide the correct DOI for the referenced publication

Summary:

  • The article DOI 10.1007/s13139-020-00636-9 has been corrected.
  • This ensures proper identification and retrieval of the scientific work.

Impact:

  • Improves the reliability of scientific databases
  • Facilitates accurate scholarly communication and referencing