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Sleep research project:
Heart rate variability during sleep

Interdisciplinary projects with the Sleep Research Lab of the University Clinic of Psychiatry (Dr. Stefan Telser) and with the Sleep Research Group of the University Clinic of Neurology (Prof. Birgit Högl)
 

We have developed a variant of the Detrended Fluctuation Analysis (DFA), the Progressive DFA (PDFA), which is able to detect change points occurring in the statistics of a time series. With the PDFA we investigated correlations in the ECG-channel of polysomnographic records to explore correlations in the heart beat during sleep.

For healthy probands we have, e.g. shown with our numerical analysis that 

  • one can utilize the difference in the heart rate variability (HRV) for on-line differentiation of REM-sleep and non-REM-sleep.
  • one can detect certain transitions between sleep stages (typically into wakefulness or abrupt changes from deep sleep to light sleep).

 Detailed information can be found in this powerpoint presentation.

 

 		  Schlafanalyse_PDFA
Schlafanalyse_Steigungen

Publications:

somnologie_cover Telser S., Staudacher M., Ploner Y., Amann A., Hinterhuber H., and Ritsch-Marte M., Can one detect sleep stage transitions for on-line sleep scoring by monitoring the heart rate variability?, Somnologie 8, 33-41 (2004) 
  Staudacher M., Telser S., Amann A., Hinterhuber H., Ritsch-Marte M.: A new method for change-point detection developed for on-line analysis of the heart beat variability during sleep. Physica A 349, 582-596 (2005)
  S. Telser, M. Staudacher, B. Hennig, Y. Ploner, A. Amann, H. Hinterhuber, M. Ritsch-Marte: Temporally resolved fluctuation analysis of sleep-ECG, J. Biol. Phys. 33, 19-33 (2007)
  M. Furtner, M. Staudacher, B. Frauscher, E. Brandauer, M. Esnaola y Rojas, V. Gschliesser, C. Schmiedauer, W. Poewe, M. Ritsch-Marte, and B. Högl: Cerebral vasoreactivity decreases over night in severe obstructive apnea syndrome: a study of cerebral hemodynamics, Sleep Medicine, Sleep Medicine 10,  875–881 (2009)

 

 

Internal Collaborations