The Suprachiasmatic Nucleus: Lesion & Transplant Experiments
Learn about landmark experiments that demonstrated the role of the suprachiasmatic nucleus (SCN) in circadian rhythms
Mammalian Molecular Entrainment to Light and Networks
Learn how light information alters the molecular circadian clock to promote entrainment
Human Circadian Variation: Genetic Approaches
Learn how genetic manipulations in model organisms and in vitro establish circadian links to human variation in chronotype
Circadian Clock-Controlled Genes Part 1
An introductory tutorial video on the mechanisms of mammalian molecular circadian clock regulation, and how the clock regulates other genes.
Establishing the Genetic Basis of Circadian Rhythms: A Landmark Study
Learn about basic property of free-running periods of circadian oscillators
Effects of Sleep Deprivation on Attention and Mood
Learn about the effects of sleep deprivation on attention and mood.
Fluence Response Curves and Action Spectra Series
Discover how action spectra are derived from fluence response curves
Interview with Dr. Carrie Partch
Hear Dr. Partch discuss the structural underpinnings of molecular clocks
Bioluminescent and Fluorescent Reporters in Circadian Rhythm Studies
Read about the biology, application, and experimental design of fluorescent reporters in circadian studies
Interview with Dr. Lance Kriegsfeld
Hear Dr. Kriegsfeld discuss circadian rhythms and neuroendocrinology
Luciferase Reporters in Circadian Research
Learn how luciferase reporters are used in circadian biology
Avian Photoreception
Virtually perform landmark experiments in avian circadian photoreception with our "Ex-Sparrow-ment" Simulator
Cellular Oscillators
Learn about "clocks in a dish," and how in vitro mammalian clocks can be used to study circadian rhythms
The 2-Process Model of Sleep
Learn how a homeostatic drive and the circadian clock control the timing of sleep
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
Photoperiodic Flowering Part 2
Part 2, the advanced mechanisms how plants measure night- and day-length to determine when to flower
Cyanobacterial Circadian Oscillator
Discover how three proteins interact to make a circadian oscillator mechanism in the cyanobacterium Synechococcus elongatus
In-Lab Video Series: Rodent Wheel-Running Experiment
Learn how to design, perform, and analyze a rodent wheel-running experiment.