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 Experiment Video

Updated: Jun 27, 2026

High-Throughput Small Molecule Drug Screening For Age-Related Sleep Disorders Using Drosophila melanogaster
05:59

High-Throughput Small Molecule Drug Screening For Age-Related Sleep Disorders Using Drosophila melanogaster

Published on: October 20, 2023

A video method to study Drosophila sleep.

John E Zimmerman1, David M Raizen, Matthew H Maycock

  • 1Center for Sleep and Respiratory Neurobiology, University of Pennsylvania School of Medicine, 125 South 31st ST, Suite 2100, Philadelphia, PA 19104-3403, USA. johnez@mail.med.upenn.edu

Sleep
|November 19, 2008
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

An automated genetic screen identifies modulators of stress-induced sleep in <i>Caenorhabditis elegans</i>.

bioRxiv : the preprint server for biology·2026
Same author

Phenotype Refinement Influences GWAS-Implicated Variant Effect Sizes for Insomnia.

Journal of sleep research·2026
Same author

GravSorter: a forward-genetics tool for studying gravity response in <i>Caenorhabditis elegans</i>.

The Analyst·2026
Same author

Generalizability of symptom-based subtypes of moderate to severe OSA patients within and between ethnic groups.

Annals of the American Thoracic Society·2026
Same author

Tricyclic antidepressants suppress sleep in Caenorhabditis elegans.

Sleep·2026
Same author

COMPREHENSIVE GENETIC INVESTIGATION REVEALS HETEROGENEOUS PATHWAYS TO OBSTRUCTIVE SLEEP APNEA.

medRxiv : the preprint server for health sciences·2026
Same journal

Nighttime light exposure is associated with metabolic dysfunction in schizophrenia: A cross-sectional analysis of the LENS study.

Sleep·2026
Same journal

Sleep Need Outcompetes Preparation: Reframing Sleep Initiation Through Naturalistic Behaviour.

Sleep·2026
Same journal

The Quest for Automated Pediatric Sleep Scoring: Are We There Yet?

Sleep·2026
Same journal

Sex Differences in the Sleep Architecture and Sleep-Disordered Breathing in C57BL/6 J Mice.

Sleep·2026
Same journal

Differential Effects of Prenatal Depression and Anxiety on Infant Sleep: Dual-Pathway Mechanisms Involving the HPA Axis and the Gut-Brain Axis.

Sleep·2026
Same journal

Metabolic Syndrome and Obstructive Sleep Apnea: Two Sides of the Same Coin.

Sleep·2026
See all related articles

Video analysis offers a more accurate method for measuring fruit fly sleep compared to the Drosophila Activity Monitoring System (DAMS). This improved accuracy is crucial for reliable sleep research in Drosophila.

Area of Science:

  • Chronobiology
  • Neuroscience
  • Animal Behavior

Background:

  • The Drosophila Activity Monitoring System (DAMS) is widely used for measuring sleep in fruit flies.
  • However, the accuracy of DAMS can be affected by various factors, including fly movement and experimental conditions.
  • Accurate sleep measurement is essential for understanding the genetic and environmental factors influencing sleep.

Purpose of the Study:

  • To evaluate the accuracy of a video-based digital image analysis method for measuring sleep in Drosophila.
  • To compare the video analysis method with the traditional DAMS for fly sleep quantification.
  • To investigate the influence of time of day, sex, genotype, and age on sleep measurements using both methods.

Main Methods:

  • Developed a digital image analysis technique using frame subtraction to differentiate between quiescent and active Drosophila.

More Related Videos

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila
18:08

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila

Published on: September 28, 2010

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila
06:06

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila

Published on: December 14, 2020

Related Experiment Videos

Last Updated: Jun 27, 2026

High-Throughput Small Molecule Drug Screening For Age-Related Sleep Disorders Using Drosophila melanogaster
05:59

High-Throughput Small Molecule Drug Screening For Age-Related Sleep Disorders Using Drosophila melanogaster

Published on: October 20, 2023

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila
18:08

Assaying Locomotor Activity to Study Circadian Rhythms and Sleep Parameters in Drosophila

Published on: September 28, 2010

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila
06:06

The Sleep Nullifying Apparatus: A Highly Efficient Method of Sleep Depriving Drosophila

Published on: December 14, 2020

  • Compared sleep data generated by the video analysis method with data from the DAMS.
  • Identified fly location using centroid tracking in subtracted images.

    • Main Results:

    • DAMS exhibited significant errors (7%-95%) in total sleep identification, influenced by genotype, sex, age, and time of day.
    • DAMS overestimated sleep bout duration, with errors dependent on genotype.
    • Video analysis accurately identified brief movements during sleep bouts and showed a homeostatic sleep response, similar to DAMS.

    Conclusions:

    • Video digital analysis provides a more accurate assessment of sleep in Drosophila than DAMS.
    • Conclusions regarding daytime sleep and sleep architecture derived from DAMS should be interpreted with caution.
    • Video analysis enables detailed assessment of fly position and fine motor activity during sleep.