We use cookies and other tools to enhance your experience on our website and to analyze our web traffic.
For more information about these cookies and the data collected, please refer to our Privacy Policy.


Casting (Moon)light on NSRR data

Want to be an early adopter of two new web-based tools (Moonlight & Moonbeam) for sleep signals, specifically designed to view NSRR data? If so, 1) read on, 2) head to https://remnrem.net/ to play with them and 3) please do give us any feedback. What is Moonlight? Moonlight is an interactive viewer for polysomnographic data. It is built on top of the command-line Luna package (https://zzz.bwh.harvard.edu/luna/), written using R and the Shiny library. Keep reading

By shaunpurcell on May 9, 2023 May 9, 2023 in Tools

pyActigraphy: Open-source Python Software for Actigraphy and Light Data Analysis

Guest blogger: Grégory Hammad, Ir, PhD GIGA-CRC in vivo imaging, University of Liège, Liège, Belgium, Chair of Neurogenetics, Faculty of Medicine, Technical University of Munich, Munich, Germany Overview PyActigraphy is an open-source Python software for actigraphy and light data analysis. Keep reading

By szhivotovsky on May 1, 2023 May 1, 2023 in Guest Blogger

A sneak peek into the NSRR standardized metadata for validated survey instruments

Any researchers who have tried to combine multiple datasets or validate findings in another dataset know how heterogeneity across datasets can make the process difficult or even impossible. At NSRR, we are working to address these challenges by standardizing and harmonizing important sleep measures and non-sleep covariates retrospectively. Standardization aims to reach uniformity in metadata across datasets, be it channel labels, annotations, variable definitions, sleep terminology, etc. Keep reading

By yzhang on November 8, 2022 Nov 8, 2022 in Releases

Harmonizing sleep and circadian data: why is it important?

Guest Blogger: Diego R. Mazzotti, Ph.D. University of Kansas Medical Center Overview In this post, we will discuss some of the highlights of a Workshop Report recently published in SLEEP1 by our colleagues at the Sleep Research Network (SRN), a Task Force from the Sleep Research Society (SRS). This report summarizes a discussion panel held at the World Sleep Congress in Vancouver, Canada in 2019, that brought together leaders in sleep, circadian sciences, and biomedical informatics. Keep reading

By ksparks on October 3, 2022 Oct 3, 2022 in Guest Blogger

The Importance of Field Experiments in Understanding Sleep Among the Urban Poor

Article Citations Rao, G., S. Redline, F. Schilbach, H. Schofield, and M. Toma. (2021). Informing Sleep Policy Through Field Experiments, Science, Volume 374, Issue 6567, https://doi.org/10.1126/science.abk2594 Bessone, P., G. Rao, F. Schilbach, H. Schofield, and M. Toma. (2021). The Economic Consequences of Increasing Sleep Among the Urban Poor, Quarterly Journal of Economics, Volume 136, Issue 3, https://doi.org/10. Keep reading

By michaelprerau on September 20, 2022 Sep 20, 2022 in Guest Blogger

Heart Rate Variability as a Potential Biomarker of Pediatric Obstructive Sleep Apnea Resolution

In this post we feature work from the following publication: Adrián Martín-Montero, Gonzalo C Gutiérrez-Tobal, Leila Kheirandish-Gozal, Fernando Vaquerizo-Villar, Daniel Álvarez, Félix del Campo, David Gozal, Roberto Hornero, Heart rate variability as a potential biomarker of pediatric obstructive sleep apnea resolution, Sleep, Volume 45, Issue 2, February 2022, zsab214, https://doi.org/10. Keep reading

By michaelprerau on August 1, 2022 Aug 1, 2022 in Guest Blogger

Characterizing Mortality and CVD for Co-Morbid Insomnia and Sleep Apnea (COMISA) in the Sleep Heart Health Study

Overview/Abstract What is the problem being addressed? Insomnia and obstructive sleep apnea commonly co-occur (COMISA). Their co-occurrence has been associated with worse cardiometabolic and mental health. However, it remains unknown if people with COMISA are at a heightened risk of incident cardiovascular events and all-cause mortality. Keep reading

By michaelprerau on June 6, 2022 Jun 6, 2022 in Guest Blogger

The Aging Slow Wave

Article Citation McConnell, B. V., Kronberg, E., Teale, P. D., Sillau, S. H., Fishback, G. M., Kaplan, R. I., ... & Bettcher, B. M. (2021). The aging slow wave: a shifting amalgam of distinct slow wave and spindle coupling subtypes define slow wave sleep across the human lifespan, Sleep, Volume 44, Issue 10, October 2021, zsab125, https://doi.org/10. Keep reading

By michaelprerau on November 29, 2021 Nov 29, 2021 in Guest Blogger

Navigating the spectral slopes of the NSRR cohorts

Nataliia Kozhemiako & Shaun Purcell We recently used NSRR data to study the so-called spectral slope of the electroencephalogram (EEG), during wake, NREM and REM sleep. This work (described in a bioRxiv pre-print, Kozhemiako et al.) points to the power of NSRR data: thousands of polysomnographic studies that can be rapidly and freely repurposed to address a broad array of research questions. Keep reading

By shaunpurcell on November 8, 2021 Nov 8, 2021 in Data Notes

ENIGMA-Sleep working group: An international sleep collaboration

What is the ENIGMA-Sleep? The Enhancing NeuroImaging Genetics through Meta Analysis (ENIGMA) consortium is a global collaboration of over 1400 scientists across 43 countries, studying neuropsychiatric illnesses and provides a powerful collaborative framework around the world. ENIGMA has more than 50 working groups, pooling large-scale coordinated data and expertise to answer fundamental clinical and neuroscientific questions, which offers testing reproducibility and robustness of findings (1). Keep reading

By michaelprerau on September 20, 2021 Sep 20, 2021 in Guest Blogger