Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Understanding Sleep01:11

Understanding Sleep

1.7K
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...
1.7K
Stages of Sleep01:22

Stages of Sleep

1.5K
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...
1.5K
Role of Amygdala in Memory01:16

Role of Amygdala in Memory

1.8K
The amygdala is a small, almond-shaped structure responsible for processing and storing memories, particularly those linked to emotions like fear and stress. It plays an essential role in the brain's response to emotionally significant events and often enhances memory formation by triggering stress hormone release. The amygdala is vital for encoding and retrieving memories associated with fear or stress, a process that is adaptive by helping organisms avoid dangerous situations.
One of the...
1.8K
Sleep-Wake Cycles01:24

Sleep-Wake Cycles

2.9K
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:
2.9K
Nightmares and Night Terrors01:18

Nightmares and Night Terrors

986
Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
Nightmares...
986
Traumatic Memory01:20

Traumatic Memory

747
Emotionally traumatic events often lead to memories that are exceptionally vivid and enduring, sometimes persisting with remarkable clarity throughout an individual's life. A classic example of this phenomenon is a person who survives a car accident. Even years later, they may recall every detail of the event with startling accuracy — the screeching of the tires, the jarring impact, and the acrid smell of burning rubber. Such vividness contrasts sharply with how an individual...
747

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Spectral mapping reveals a resemblance of the anesthetic brain state to both sleep and coma.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Impaired slow-wave sleep accounts for brain aging-related increases in anxiety.

Communications psychology·2026
Same author

REM Sleep Misfires: Intruding Delta Waves Forecast Tau, Amyloid, and Forgetting in Aging.

bioRxiv : the preprint server for biology·2025
Same author

Slow wave synchrony during NREM sleep tracks cognitive impairment in prodromal Alzheimer's disease.

Alzheimer's & dementia : the journal of the Alzheimer's Association·2025
Same author

Restless nights, cold hearts: Poor sleep causally blunts empathy.

International journal of clinical and health psychology : IJCHP·2025
Same author

The new science of sleep: From cells to large-scale societies.

PLoS biology·2024
Same journal

Sleep in Women.

Sleep medicine clinics·2026
Same journal

Future Research Direction for Women's Sleep Health.

Sleep medicine clinics·2026
Same journal

Sleep Disturbance and Female Infertility.

Sleep medicine clinics·2026
Same journal

Circadian Disruption Shift Work and Breast Cancer Risk.

Sleep medicine clinics·2026
Same journal

Sleep Duration and Mortality in Women: Effect of Aging and Menopause.

Sleep medicine clinics·2026
Same journal

Update on Restless Legs Syndrome Management during Pregnancy.

Sleep medicine clinics·2026
See all related articles

Related Experiment Video

Updated: Apr 23, 2026

Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
08:20

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

Published on: October 2, 2019

10.8K

Sleep and Emotional Memory Processing.

Els van der Helm1, Matthew P Walker1

  • 1Sleep and Neuroimaging Laboratory, Department of Psychology and Helen Wills, Neuroscience Institute, University of California, Berkeley, California 94720-1650, USA.

Sleep Medicine Clinics
|October 7, 2014
PubMed
Summary
This summary is machine-generated.

This study explores how sleep impacts emotional regulation by reprocessing emotional experiences overnight. Proper sleep is crucial for balancing brain activity and preventing mood disturbances.

Keywords:
AffectDepressionEmotionLearningMemoryPTSDREM sleepSleep

More Related Videos

Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory
08:08

Eye 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

28.2K
Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion
15:57

Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion

Published on: May 4, 2011

15.9K

Related Experiment Videos

Last Updated: Apr 23, 2026

Measuring Neural Mechanisms Underlying Sleep-Dependent Memory Consolidation During Naps in Early Childhood
08:20

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

Published on: October 2, 2019

10.8K
Eye Tracking, Cortisol, and a Sleep vs. Wake Consolidation Delay: Combining Methods to Uncover an Interactive Effect of Sleep and Cortisol on Memory
08:08

Eye 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

28.2K
Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion
15:57

Brain Imaging Investigation of the Memory-Enhancing Effect of Emotion

Published on: May 4, 2011

15.9K

Area of Science:

  • Cognitive Neuroscience
  • Sleep Science
  • Affective Neuroscience

Background:

  • Cognitive neuroscience and biological sciences are increasingly linking affective behavior with brain function.
  • Recent research highlights the critical role of sleep in neurocognitive processes, particularly emotional regulation.
  • A growing body of evidence points to the interaction between sleep and emotional processing.

Purpose of the Study:

  • To survey diverse findings across basic and clinical research on sleep and emotional regulation.
  • To present a convergent view of sleep-dependent emotional brain processing.
  • To propose a model for overnight modulation of affective neural systems and emotional experiences.

Main Methods:

  • Review of diverse findings from basic and clinical research domains.
  • Analysis of the neurobiology of sleep in relation to affective neural systems.
  • Formulation of a model for overnight emotional (re)processing.

Main Results:

  • Sleep plays a vital role in modulating affective neural systems.
  • Overnight (re)processing of emotional experiences helps regulate next-day reactivity of limbic and autonomic networks.
  • A REM sleep hypothesis for emotional-memory processing is proposed.

Conclusions:

  • Sleep is essential for effective emotional regulation and brain function.
  • Sleep abnormalities may be linked to the development and persistence of mood disorders.
  • Understanding sleep-dependent emotional processing offers brain-based insights into mood disturbances.