Properties of Entrainable Oscillators
Learn the properties that define an entrainable biological circadian oscillator
Establishing the Genetic Basis of Circadian Rhythms: A Landmark Study
Learn about basic property of free-running periods of circadian oscillators
The 2-Process Model of Sleep
Learn how a homeostatic drive and the circadian clock control the timing of sleep
In-Lab Video Series: Rodent Wheel-Running Experiment
Learn how to design, perform, and analyze a rodent wheel-running experiment.
Structural Changes of the Cyanobacterial Clock
Watch the structural nanomachine of the cyanobacterial circadian oscillator come to life in this video made by our colleagues.
Interview with Dr. Carrie Partch
Hear Dr. Partch discuss the structural underpinnings of molecular clocks
Cyanobacterial Circadian Clock Output Mechanism
Discover how the core circadian oscillator in the cyanobacterium Synechococcus elongatus sends output to regulate timing
Phase Response Curves
Understand phase response curves, an important - but tricky! - circadian concept
Healthy Light Exposure Infographic
Learn the do's and don'ts of light exposure that affect circadian rhythms and sleep
Luciferase Reporters for Cyanobacteria in Circadian Research
Learn how luciferase reporters are used to study circadian rhythms in cyanobacteria
An Introduction to Chronobiology
Read our three-part introduction to basic concepts in chronobiology
The Transcriptomic Motion Picture of Marine Microbes
A blog post about understanding daily rhythms in marine microbes.
Mammalian Molecular Entrainment to Light and Networks
Learn how light information alters the molecular circadian clock to promote entrainment
The Suprachiasmatic Nucleus: Lesion & Transplant Experiments
Learn about landmark experiments that demonstrated the role of the suprachiasmatic nucleus (SCN) in circadian rhythms
Entrainment Simulator
Explore basic concepts of circadian entrainment, phase response curves, and phase shifts with our Entrainment Simulator
Photoperiodic Flowering Part 2
Part 2, the advanced mechanisms how plants measure night- and day-length to determine when to flower
Luciferase Reporters for Mammals in Circadian Research
Learn how luciferase reporters are used to study circadian rhythms in mammals
Exploring Processes C and S Part 2: Forced Desynchrony
Learn how sleep researchers use a "forced desynchrony" protocol to separate effects of processes C and S on sleep
Avian Photoreception
Virtually perform landmark experiments in avian circadian photoreception with our "Ex-Sparrow-ment" Simulator
Time Memory in Bees
Learn about landmark experiments that established internal clocks as the source of circadian rhythms in animals
Cyanobacterial Circadian Oscillator
Discover how three proteins interact to make a circadian oscillator mechanism in the cyanobacterium Synechococcus elongatus