Abstract: Bispectral analysis, based on high order statistics, is used to reveal frequency and phase relationships among the characteristic oscillations in cardiovascular signals. It is applicable to univariate data for which it allows one to obtain information about phase and/or frequency couplings between the oscillators. The method is modified in order to obtain time evolution of the phases. Using this technique, couplings between the cardiac, respiratory and myogenic processes, with characteristic frequencies of 1Hz, 0.2Hz and 0.1Hz respectively, are studied. Episodes of linear couplings between the respiratory and myogenic and the cardiac and myogenic processes, and quadratic couplings between the cardiac and the respiratory processes will be shown and discussed.
Seminarsko predavanje bo v petek, 18. januarja 2002 ob 17:30 uri v seminarski sobi CAMTP, Krekova 2, pritlicje. Vljudno vabljeni vsi zainteresirani, tudi študenti.