Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Insufficient Sleep and Sleep Deprivation

Insufficient Sleep and Sleep Deprivation

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...

You might also read

Related Articles

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

Sort by

Same author

Circadian Rhythm Stabilization App to Prevent Mood Episode Recurrence in Patients With Mood Disorders: A Multicenter, Double-Blind, Sham-Controlled, Randomized Clinical Trial.

The American journal of psychiatry·2026

Same author

Network Analysis of Sleep, Mental Health, and Stress in Korean Dentists.

International dental journal·2026

Same author

Machine learning for scalable obstructive sleep apnea risk screening using digital phenotyping from wearable devices and clinical scales.

Scientific reports·2026

Same author

Heart rate circadian phase and hyperarousal as wearable digital phenotyping of insomnia: An interpretable machine learning study.

Digital health·2026

Same author

Week-ahead prediction of depressive episodes using wearable-derived circadian biomarkers: A multicenter deep learning study with risk-based operating thresholds.

Journal of affective disorders·2026

Same author

Mapping Practice-Based Signals of Generative AI in Psychiatric Care: Qualitative Study of Korean Psychiatrists' Experiences, Interpretations, and Implementation Priorities.

Journal of medical Internet research·2026

Search research articles

Related Experiment Video

Updated: Mar 12, 2026

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

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

Published on: October 2, 2019

Decrease in fMRI brain activation during working memory performed after sleeping under 10 lux light.

Seung-Gul Kang¹, Ho-Kyoung Yoon², Chul-Hyun Cho²

¹Department of Psychiatry, Gil Medical Center, Gachon University, School of Medicine, Incheon, Korea.

Scientific Reports

|November 10, 2016

Summary

Sleeping with dim light at night (dLAN) may affect brain function. Exposure to 10 lux dLAN reduced activity in the right inferior frontal gyrus during working memory tasks.

More Related Videos

Author Spotlight: Developing Photo-Stimulation Technology for Toxin Removal in Sleep-Related Brain Diseases

Author Spotlight: Developing Photo-Stimulation Technology for Toxin Removal in Sleep-Related Brain Diseases

Published on: June 28, 2024

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

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

Related Experiment Videos

Last Updated: Mar 12, 2026

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

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

Published on: October 2, 2019

Author Spotlight: Developing Photo-Stimulation Technology for Toxin Removal in Sleep-Related Brain Diseases

Author Spotlight: Developing Photo-Stimulation Technology for Toxin Removal in Sleep-Related Brain Diseases

Published on: June 28, 2024

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

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

Area of Science:

Neuroscience
Cognitive Science
Sleep Research

Background:

Dim light at night (dLAN) exposure is increasingly common.
Understanding dLAN's impact on brain function is crucial for public health.
Previous research suggests sleep disruption affects cognitive processes.

Purpose of the Study:

To investigate the effects of dLAN on functional brain activation during working memory tasks.
To determine if different intensities of dLAN (5 vs. 10 lux) have varying impacts.
To analyze brain activity using functional magnetic resonance imaging (fMRI).

Main Methods:

Twenty healthy male subjects participated in a controlled polysomnography laboratory study.
Participants underwent fMRI scans during n-back tasks after two nights of no light and one night of dLAN exposure (5 or 10 lux).
Statistical parametric mapping was used to analyze brain activation differences.

Main Results:

Exposure to 10 lux dLAN significantly reduced activation in the right inferior frontal gyrus (IFG).
In the 10-lux group, brain activity in the right and left IFG decreased more during the 2-back task compared to 0- or 1-back tasks.
Exposure to 5 lux dLAN did not produce significant changes in brain activity.

Conclusions:

dLAN, particularly at 10 lux, can influence brain function related to working memory.
The inferior frontal gyrus appears sensitive to dLAN exposure.
Further research is needed to fully understand the long-term cognitive consequences of dLAN.