Spectral analysis of sympathetic discharge, RR interval and systolic arterial pressure in decerebrate cats
N Montano, F Lombardi, TG Ruscone, M Contini… - Journal of the autonomic …, 1992 - Elsevier
In 19 decerebrate and artificially ventilated cats, we analyzed, with a power spectral
methodology, the variability simultaneously present in RR interval and in thoracic
preganglionic sympathetic outflow. RR interval was characterized, as already described in
humans and other experimental preparations, by two rhythmic components occurring at a
frequency of about 0.1 Hz (low-frequency, LF) and at one corresponding to respiratory rate
(high-frequency, HF) which, in these experiments, was set at 0.32 Hz. Two similar rhythmic …
methodology, the variability simultaneously present in RR interval and in thoracic
preganglionic sympathetic outflow. RR interval was characterized, as already described in
humans and other experimental preparations, by two rhythmic components occurring at a
frequency of about 0.1 Hz (low-frequency, LF) and at one corresponding to respiratory rate
(high-frequency, HF) which, in these experiments, was set at 0.32 Hz. Two similar rhythmic …