Title :
Assessment of the dynamics of neurovegetative response using Wigner-Ville transform
Author :
Mainardi, L.T. ; Montano, N. ; Bianchi, A.M. ; Malliani, A. ; Cerutti, S.
Author_Institution :
Med. Interna II, Milan, Italy
Abstract :
The autonomic response to graded orthostatic head-up tilt was investigated in normal subjects. Autonomic tone was assessed in the early phase of tilt through the analysis of time-frequency distribution of RR intervals obtained by Pseudo Smoothed Wigner-Ville transform. The results put into evidence different dynamics in the sympathetic activation induced by tilt, which depends on the level of sympathetic stimulation
Keywords :
electrocardiography; medical signal processing; neurophysiology; spectral analysis; time-frequency analysis; transforms; Wigner-Ville transform; autonomic response; autonomic tone; graded orthostatic head-up tilt; neurovegetative response dynamics assessment; normal subjects; time-frequency distribution analysis; Autonomic nervous system; Biomedical engineering; Control systems; Force measurement; Heart rate; Heart rate variability; Ischemic pain; Spectral analysis; Time frequency analysis; Transient analysis;
Conference_Titel :
[Engineering in Medicine and Biology, 1999. 21st Annual Conference and the 1999 Annual Fall Meetring of the Biomedical Engineering Society] BMES/EMBS Conference, 1999. Proceedings of the First Joint
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-5674-8
DOI :
10.1109/IEMBS.1999.802387
