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

Sleep-Wake Cycles01:24

Sleep-Wake Cycles

2.7K
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:
2.7K
Design Example: Resistive Touchscreen01:14

Design Example: Resistive Touchscreen

702
A device engineer plays a crucial role in designing user interfaces for mobile devices. One such interface is the resistive touchscreen, which fundamentally consists of two metallic layers: a flexible upper layer and a rigid lower layer, separated by a narrow gap. The high resistance between these two layers is a key characteristic of this design.
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
702
Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

850
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...
850
The Born-Haber Cycle02:44

The Born-Haber Cycle

25.2K
Lattice Energy 
25.2K
Stages of Sleep01:22

Stages of Sleep

1.3K
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...
1.3K
What are Biogeochemical Cycles?00:54

What are Biogeochemical Cycles?

39.2K
The most common elements in organic molecules, carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus, are only available in the ecosystem in limited amounts. Therefore, these nutrients must be recycled through both biotic and abiotic components of the ecosystem, in processes generally called biogeochemical cycles.
39.2K

You might also read

Related Articles

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

Sort by
Same author

Cardiovascular Responses to Natural and Auditory Evoked Slow Waves Predict Post-Sleep Cardiac Function.

Journal of sleep research·2026
Same author

The Interaction between Sleep and Development on Wake EEG Oscillations.

eNeuro·2026
Same author

Bursts of regional cortical inhibition during smartphone use.

iScience·2026
Same author

Brain Health from Sleep EEG: A Multicohort, Deep Learning Biomarker for Cognition, Disease, and Mortality.

NEJM AI·2026
Same author

Cortical integration of tactile inputs distributed across timescales.

Imaging neuroscience (Cambridge, Mass.)·2026
Same author

Optimizing automated phase-targeted auditory stimulation protocols for procedural memory consolidation during sleep in a home setting.

Sleep advances : a journal of the Sleep Research Society·2025

Related Experiment Video

Updated: Jan 21, 2026

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

27.5K

Capturing sleep-wake cycles by using day-to-day smartphone touchscreen interactions.

Jay N Borger1, Reto Huber2, Arko Ghosh1

  • 11Institute of Psychology, Cognitive Psychology Unit, Leiden University, Leiden, The Netherlands.

NPJ Digital Medicine
|August 3, 2019
PubMed
Summary

Smartphone use significantly impacts sleep duration measurements. Tappigraphy, tracking touchscreen events, reveals users interact with phones for hours around sleep onset and wake-up times, challenging traditional actigraphy. This offers a novel sleep measurement approach.

Keywords:
BiomarkersHuman behaviourRisk factors

More Related Videos

Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
08:58

Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice

Published on: June 19, 2019

10.4K
Polygraphic Recording Procedure for Measuring Sleep in Mice
08:45

Polygraphic Recording Procedure for Measuring Sleep in Mice

Published on: January 25, 2016

25.2K

Related Experiment Videos

Last Updated: Jan 21, 2026

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

27.5K
Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice
08:58

Optogenetic Manipulation of Neural Circuits During Monitoring Sleep/wakefulness States in Mice

Published on: June 19, 2019

10.4K
Polygraphic Recording Procedure for Measuring Sleep in Mice
08:45

Polygraphic Recording Procedure for Measuring Sleep in Mice

Published on: January 25, 2016

25.2K

Area of Science:

  • Sleep Science
  • Human-Computer Interaction
  • Digital Health

Background:

  • Actigraphy, measuring sleep via body movements, is standard but can be confounded by wakeful rest.
  • Ubiquitous smartphone use introduces potential inaccuracies in sleep duration estimation.
  • Cognitive activity during rest periods can mimic sleep signatures.

Purpose of the Study:

  • To investigate the overlap between gross body movements (actigraphy) and smartphone touchscreen activity (tappigraphy).
  • To assess how digital behavior influences traditional sleep measurement methods.
  • To explore smartphone interactions as a novel metric for sleep analysis.

Main Methods:

  • Continuous monitoring of gross body movements using wrist-worn accelerometers (actigraphy).
  • Logging of daily touchscreen events ('tappigraphy') from smartphones.
  • Correlation analysis of actigraphy-derived sleep onset/wake times with tappigraphy data in 79 individuals over ~1400 nights.

Main Results:

  • Smartphone use peaked during rest but occurred across all activity levels.
  • Actigraphy and tappigraphy showed strong correlations for sleep onset and wake-up times (R²=0.9).
  • Actigraphy overestimated sleep duration due to frequent phone use during presumed sleep periods, extending ~2 hours into and before sleep/wake times.

Conclusions:

  • Smartphone touchscreen interactions are integral to modern sleep habits, occurring around sleep onset and wake-up.
  • Tappigraphy provides valuable data that can refine sleep duration estimates.
  • Leveraging smartphone interactions offers a new, more accurate approach to behavioral sleep measurement.