Autonomic characteristics of nonclinical panic and blood phobia were compared using
spectral analysis of the electrocardiogram (EKG), as well as more conventional …

Nonlinear Dynamics in Heart Rate. Introduction: The term chaos is used to describe erratic
or apparently random time‐dependent behavior in deterministic systems. It has been …

Heart rate variations reflect the output of the complex control of the heart mediated by the
autonomic nervous system. Because of that, they also encode different types of information …

The paper deals with methods of processing ECG and respiration signals which aim at
detecting parameters whose values may be correlated to normal and diabetic subjects with …

In 19 decerebrate and artificially ventilated cats, we analyzed, with a power spectral
methodology, the variability simultaneously present in RR interval and in thoracic …

OBJECTIVE: Paroxysmal atrial fibrillation (PAF) is a serious arrhythmia associated with
morbidity and mortality. We explore the possibility of distant prediction of PAF by analyzing …

Study design Power spectrum analysis of heart rate variability (HRV) is a noninvasive
technique that provides a quantitative assessment of cardiovascular neural control. Using …

Autonomic nervous system activity is an important component of human emotion. Mental
processes influence bodily physiology, which in turn feeds back to influence thoughts and …

Background We determined the intraclass correlation coefficients (ICC) of repeated
measures of the mean levels and variability of RR and muscle sympathetic nerve activity …

This study investigated the effects of biofeedback/self-management training on heart rate
variability (HRV) in six sudden cardiac arrest survivors. The physiological-theoretical basis …