Transitions in physiological coupling between heartbeat and pulse across sleep stages.

@article{Ma2018TransitionsIP,
  title={Transitions in physiological coupling between heartbeat and pulse across sleep stages.},
  author={Qianli Ma and Changjuan Ji and Huanhuan Xie and Kai Yin and Zhen Ma and Chunhua Bian},
  journal={Physiological measurement},
  year={2018},
  volume={39 3},
  pages={034006}
}
OBJECTIVE The aim of this study is to investigate the coupling behavior between heartbeat and pulse of blood flow at different sleep stages, and to explore the feasibility of using this coupling strength for automatic sleep staging. APPROACH The electrocardiogram and photoplethysmography signals are recorded during sleep, and R-wave-to-R-wave intervals… CONTINUE READING