Circadia
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Circadia

About us

We are an interdisciplinary group spanning the School of Computer Science and the School of Psychology at Northumbria University. Our research focusses on the intersection of physics, computer science, physiology and chronobiology. We are particularly interested in sleep, rhythmicity, and medical signals of various modalities.

The word “Circadia” derives from the Latin “circa diem” meaning “around the day”, a reference to the circadian rhythms that govern our lives and the focus of our research. It also rhymes with “arcadia” - a place for exploration, discovery and learning.

News

Tutorials

Introducing Sleep Diaries: an open-source sleep diary app for research

We are releasing Sleep Diaries — a free, open-source, research-grade sleep diary app built with React Native and Expo. It runs on iOS, Android, and the web, and is designed…

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Publications

Low-latitude environmental regularity sustains non-photic entrainment in blind adults

Using wrist actigraphy and machine learning in 58 blind adults living near the equator in Brazil, this study shows that circadian rest–activity rhythms can remain stably…

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