Entrainment Simulator
Explore basic concepts of circadian entrainment, phase response curves, and phase shifts with our Entrainment Simulator
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.
Effects of Sleep Deprivation on Attention and Mood
Learn about the effects of sleep deprivation on attention and mood.
Healthy Light Exposure Infographic
Learn the do's and don'ts of light exposure that affect circadian rhythms and sleep
Interview with Dr. Lance Kriegsfeld
Hear Dr. Kriegsfeld discuss circadian rhythms and neuroendocrinology
Human Circadian Variation: Genetic Approaches
Learn how genetic manipulations in model organisms and in vitro establish circadian links to human variation in chronotype
Luciferase Reporters for Cyanobacteria in Circadian Research
Learn how luciferase reporters are used to study circadian rhythms in cyanobacteria
In-Lab Video Series: Rodent Wheel-Running Experiment
Learn how to design, perform, and analyze a rodent wheel-running experiment.
The 2-Process Model of Sleep
Learn how a homeostatic drive and the circadian clock control the timing of sleep
An Introduction to Chronobiology
Read our three-part introduction to basic concepts in chronobiology
Cellular Oscillators
Learn about "clocks in a dish," and how in vitro mammalian clocks can be used to study circadian rhythms
The Transcriptomic Motion Picture of Marine Microbes
A blog post about understanding daily rhythms in marine microbes.
Cyanobacterial Circadian Clock Output Mechanism
Discover how the core circadian oscillator in the cyanobacterium Synechococcus elongatus sends output to regulate timing
Establishing the Genetic Basis of Circadian Rhythms: A Landmark Study
Learn about basic property of free-running periods of circadian oscillators
Interview with Dr. Carrie Partch
Hear Dr. Partch discuss the structural underpinnings of molecular clocks
Common Clock Mechanism Graphics Tool
Use our free editable powerpoint file of mammalian, fly, and plant molecular clock mechanisms in presentations and papers
Phase Response Curves
Understand phase response curves, an important - but tricky! - circadian concept
Properties of Entrainable Oscillators
Learn the properties that define an entrainable biological circadian oscillator
Exploring Processes C and S Part 1: Napping Protocol
Learn how sleep researchers use a "napping" protocol to separate effects of processes C and S on sleep