Reversible transitions between synchronization states of the cardiorespiratory system.
Phase synchronization between cardiac and respiratory oscillations is investigated during anesthesia in rats. Synchrograms and time evolution of synchronization indices are used to show that the system passes reversibly through a sequence of different phase-synchronized states as the anesthesia level changes, indicating that it can undergo phase transitionlike phenomena. It appears that the synchronization state may be used to characterize the depth of anesthesia.
Stefanovska
A
A
Group of Nonlinear Dynamics and Synergetics, Faculty of Electrical Engineering, University of Ljubljana, Trzaska 25, 1000 Ljubljana, Slovenia.
Haken
H
H
McClintock
P V
PV
Hozic
M
M
Bajrović
F
F
Ribaric
S
S
D000758:Anesthesia; D000818:Animals; D002320:Cardiovascular Physiological Phenomena; D004562:Electrocardiography; D051381:Rats; D012119:Respiration