The cyclic properties of seizures have been known for more than 100 years, but does everyone with epilepsy have a seizure pattern? What can be learned from seizure diaries, RNS data, and animal models, and how can this information guide further research and clinical care? Dr. Laurent Sheybani talks with Dr. Mark Quigg about circadian rhythms in epilepsy.Selected publications:Electrocorticographic events from long-term ambulatory brain recordings can potentially supplement seizure diaries - Quigg M, et al. (2020) Epilepsy ResearchCircadian and ultradian patterns of epileptiform discharges differ by seizure-onset location during long-term ambulatory intracranial monitoring - Spencer DC, et al. (2016) EpilepsiaInterrater reliability in interpretation of electrocorticographic seizure detections of the responsive neurostimulator - Quigg M, et al. (2015) EpilepsiaVariation of seizure frequency with ovulatory status of menstrual cycles - Herzog AG, et al. (2011) EpilepsiaIs there a circadian variation of epileptiform abnormalities in idiopathic generalized epilepsy? Pavlova MK, et al. (2009) Epilepsy & Behavior Support the showSharp Waves episodes are meant for informational purposes only, and not as clinical or medical advice.The International League Against Epilepsy is the world's preeminent association of health professionals and scientists, working toward a world where no person's life is limited by epilepsy. Visit us on Facebook, Twitter, and Instagram.