Perelman School of Medicine at the University of Pennsylvania

Chronobiology Program

Resources/Links

Meetings of Interest


July 16-21, 2017. Gordon Research Conference: Circadian Regulation Across Physiological Systems, Lifespan and Pathological Conditions. Stowe, Vermont. Click here to learn more.

June 3-7, 2017. APSS Meeting, Boston, Massachusetts. Click here to learn more.

May 3, 2017. Center for Sleep and Circadian Neurobiology/Penn Chronobiology Program Annual Retreat. Click here to download the abstract/registration form

September 13-16, 2016. 23rd Congress of the European Sleep Research Society. Bologna, Italy. Click here for the program.

June 11-15, 2016. APSS Meeting, Denver, Clorado. Click here for the program.

May 21-25, 2016. SRBR Meeting, Palm Harbor, Florida. Click here for the program.

May 5-6, 2016. Circadian Rhythms in GI Health and Diseases. Chicago, Illinois. Click here for the program.

May 11, 2016. Penn Sleep Medicine and Penn Chronobiology Program Research Retreat. Click here for the flyer.

Software Packages for Circadian and Sleep Analysis


Clocklab is a package for data collection and analysis of circadian behavior.

Drosophila Activity Monitoring System including infra-red monitors for raw data collection and filescan program for downstream data analysis.

JTK Cycle is a non-parametric algorithm for identification of cycling variables in large data sets.

MetaCycle Provides two functions-meta2d and meta3d for detecting rhythmic signals from time-series datasets.

Pysolo  is a package for Drosophila sleep analysis.

ActogramJ is an ImageJ Plug-in for circadian rhythm analysis.

Wavelet transform analysis

Circadian Database


CircaDB A Circadian Expression Profiles Database maintained by the Hogenesch lab.

CircadianServer Effects of feeding on rhythmic transcripts in the mouse liver.