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

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:
Abdominal Regions and Quadrants01:19

Abdominal Regions and Quadrants

To promote clear communication, for instance, about the location of a patient's abdominal pain or a suspicious mass, anatomists and clinicians typically use imaginary lines to categorize the abdominopelvic cavity into either four quadrants or nine regions to identify organs in the cavity.
The simpler quadrants approach, which is more commonly used in medicine, subdivides the cavity with one horizontal and one vertical line that intersects at the patient's umbilicus (navel). The four quadrants...
Understanding Sleep01:11

Understanding Sleep

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...
Properties of Laplace Transform-II01:16

Properties of Laplace Transform-II

Time differentiation, convolution, integration, and periodicity are fundamental concepts in analyzing functions and signals over time. Each concept provides a unique perspective on how functions evolve, interact, and repeat, offering essential tools for various scientific and engineering applications.
Time differentiation involves analyzing the rate of change of a function over time. Mathematically, it is the derivative of a function with respect to time. This concept can be likened to tracking...
Management of Insomnia01:19

Management of Insomnia

The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
Stages of Sleep01:22

Stages of Sleep

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...

You might also read

Related Articles

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

Sort by
Same author

Prebilaterian origin of monoaminergic signaling.

Current biology : CB·2026
Same author

Time to Eat Your Vegetables: The Role of Circadian Clocks in Insect Herbivory.

Insects·2026
Same author

Detecting supramolecular organic nanoparticles during heat wave.

Science (New York, N.Y.)·2026
Same author

Behaviour and reproduction of Drosophila melanogaster exposed to 3.6 GHz radio-frequency electromagnetic fields.

PloS one·2025
Same author

Behavioural rhythms of two amphipod species Marinogammarus marinus and Gammarus pulex under increasing levels of light at night.

PloS one·2025
Same author

Adult Diel Locomotor Behaviour in the Agricultural Pest <i>Plutella xylostella</i> Reflects Temperature-Driven and Light-Repressed Regulation Rather than Coupling to Circadian Clock Gene Rhythms.

Insects·2025

Related Experiment Video

Updated: Jun 26, 2026

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
08:36

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

The right period for a Siesta.

Herman Wijnen1, Michael W Young

  • 1Department of Biology, University of Virginia, Charlottesville, VA 22904-4328, USA. hw9u@virginia.edu

Neuron
|December 27, 2008
PubMed
Summary

Fruit flies like Drosophila melanogaster show seasonal activity changes, resting more midday on hot days to prevent drying out. This behavior is linked to per mRNA splicing, differing from the tropical Drosophila yakuba.

Area of Science:

  • Entomology
  • Chronobiology
  • Genetics

Background:

  • Drosophila melanogaster exhibits seasonal variations in daily activity patterns.
  • Midday rest behavior expands during long, warm days, potentially as a strategy to avoid desiccation.
  • This seasonal adaptation is crucial for species survival in temperate climates.

Discussion:

  • Comparative analyses reveal temperature-dependent control of midday rest.
  • This control is partly associated with specific patterns of per mRNA splicing.
  • These splicing patterns are notably absent in Drosophila yakuba, a species from warmer climates.

Key Insights:

  • The per mRNA splicing mechanism plays a role in regulating seasonal activity in Drosophila.
  • Drosophila melanogaster's adaptation to seasonal temperature changes involves molecular mechanisms.

More Related Videos

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
10:16

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Published on: April 7, 2020

Related Experiment Videos

Last Updated: Jun 26, 2026

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
08:36

Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments

Published on: August 8, 2019

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World
10:16

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Published on: April 7, 2020

  • Differences in per mRNA splicing correlate with distinct environmental adaptations between Drosophila species.

    • Outlook:

    • Further research into the genetic basis of seasonal behavior in insects.
    • Investigating the evolutionary significance of per mRNA splicing in Drosophila.
    • Exploring potential applications in understanding climate change adaptation in other species.