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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.

Our tools & software

Sleep Diaries

Sleep Diaries

Structured digital sleep diary for research and clinical use

App →
ScoreMe

ScoreMe

Scoring and interpretation of validated sleep questionnaires

App →
slumbR

slumbR

R package for sleep data analysis and visualisation

R pkg →
tallieR

tallieR

R package for importing, scoring, and analysing ScoreMe questionnaire data

R pkg →
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Circadia Docker

Reproducible research environment for chronobiology

Infra →

News

Tutorials

Setting up circadiaBase Docker

A step-by-step guide to spinning up the Circadia Lab’s reproducible research environment — JupyterLab and RStudio Server in a single Docker Compose stack — for chronobiology and actigraphy research.

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Publications

From Movement to METs: A Validation of ActTrust® for Energy Expenditure Estimation and Physical Activity Classification in Young Adults

Physical activity (PA) is recognised for providing several health benefits in humans, mainly preventing and controlling chronic non-communicable diseases. However estimating PA is a challenging and expensive task. An alternative would be to devise a model to estimate PA using actigraphy devices…

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