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Katz R.A.

Nonlinear/chaotic dynamics in human physiology
Richard A. Katz
Naval Undersea Warfare Center
Code 33a, Building 2
39 Smith st. New London Connecticut 06320

This research applies novel nonlinear signal detection techniques in studies of human subjects with respiratory and cardiac diseases. One of our metrics, the 'chaotic radius' is used for tracking the position of points in phase space relative to some reference position. A second metric, the 'differential radius' provides a measure of the separation rate of contiguous (evolving) points in phase space. A third metric, the 'chaotic frequency' gives angular position of the phase space orbit as a function of time. All are useful for identifying change of physiologic condition that is not always apparent using conventional methods.



Book of abstracts
ICND-96