Currently, Dr. Jeon has focused on parametric and non-parametric methods for analyzing circadian rhythmicity of continuous motor activity (rest-activity rhythms). He is interested in developing the cosinor model with random effects to produce more informative metrics of circadian rhythmicity to predict symptom changes and clinical consequences in patients with heart failure. A paper reporting circadian rhythmicity contributes daytime symptoms, and functional performance is under review, and with Dr. Redeker, he successfully produced publications to show cognitive intervention effects on insomnia and relationships between sleep disturbance and daytime symptoms.
