Summary: Characterization of sleep stages by correlations in the magnitude and sign of heartbeat increments
Jan W. Kantelhardt,1
Yosef Ashkenazy,1
Plamen Ch. Ivanov,1,2
Armin Bunde,3
Shlomo Havlin,4,1,3
Thomas Penzel,5
Jo¨rg-Hermann Peter,5
and H. Eugene Stanley1
1
Center for Polymer Studies and Department of Physics, Boston University, Boston, Massachusetts 02215
2
Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts 02215
3
Institut fu¨r Theoretische Physik III, Justus-Liebig-Universita¨t, D-35392 Giessen, Germany
4
Gonda-Goldschmied-Center and Department of Physics, Bar-Ilan University, Ramat-Gan 52900, Israel
5
Klinik fu¨r Innere Medizin, Klinikum der Philipps-Universita¨t, D-35033 Marburg, Germany
Received 18 December 2000; revised manuscript received 11 January 2002; published 8 May 2002

Source: Ashkenazy, Yossi "Yosef" - Department of Solar Energy and Environmental Physics, Jacob Blaustein Institutes for Desert Research,Ben-Gurion University of the Negev
Stanley, H. Eugene - Department of Physics, Boston University

Collections: Computer Technologies and Information Sciences; Environmental Management and Restoration Technologies; Materials Science; Physics