The paper “Extracting circadian and sleep parameters from longitudinal data in schizophrenia for the design of pragmatic light interventions” co-authored by Anne Skeldon, Derk-Jan Dijk (Director, Surrey Sleep Research Centre) , Nicholas Meyer (Consultant psychiatrist, King’s College) and Katharina Wulff (Umea University, Sweden), has been published in the November issue of the Schizophrenia Bulletin (The Journal of Psychoses and Related Disorders). It is published gold open access and is freely available for download (link here). The paper develops personalised mathematical models of sleep and circadian rhythms and suggests how models and data could be combined in clinical practice to design light interventions to normalize sleep-wake timing. The image below shows Figure 4 from the paper.