Heart rate variability as determinism with jump stochastic parameters.
Math Biosci Eng
; 10(4): 1253-64, 2013 Aug.
Article
em En
| MEDLINE
| ID: mdl-23906210
ABSTRACT
We use measured heart rate information (RR intervals) to develop a one-dimensional nonlinear map that describes short term deterministic behavior in the data. Our study suggests that there is a stochastic parameter with persistence which causes the heart rate and rhythm system to wander about a bifurcation point. We propose a modified circle map with a jump process noise term as a model which can qualitatively capture such this behavior of low dimensional transient determinism with occasional (stochastically defined) jumps from one deterministic system to another within a one parameter family of deterministic systems.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Frequência Cardíaca
/
Modelos Cardiovasculares
Limite:
Humans
Idioma:
En
Ano de publicação:
2013
Tipo de documento:
Article