Speaker: Dr. Erik D. Herzog Associate Professor, Department of Biology, Washington University, St. Louis, USA Networked circadian oscillators in the brain: The politics of periodicity. Daily rhythms in sleep and wake are familiar examples of circadian oscillations. These biological rhythms are driven by circadian pacemakers in the brain. Recent progress has revealed cells and molecules essential to generate and synchronize circadian rhythms. Using long-term, real-time recordings of electrical activity and gene expression, we are beginning to understand the neural circuits which mediate daily rhythms in the brain and body. This talk will highlight two neural circuits, the suprachiasmatic nucleus and the olfactory bulb, to illustrate how highly precise circadian systems are organized and affected by experience.